The ESP32-C5 C-ITS receiver project is an open-source hardware board that gathers data over 802.11p V2X communication from nearby traffic lights, public transportation (buses, trams…), trucks, cars, motorcycles, and even pedestrians to display the results on online maps.

It works using the ITS-G5 protocol built on top of 802.11p V2X (Vehicle-to-Everything), which requires a 5.9 GHz WiFi radio, and makes the ESP32-C5 an ideal candidate. The standard requires a C-ITS Station (ITS-S) found in vehicles (on-board units – OBU) or roadside units (RSU) handling both transmission and reception, and a receiver to handle incoming wireless signals, decode C-ITS (Cooperative Intelligent Transport Systems) messages, and feed the data into online maps like OpenTrafficMap (See screenshot below).

ESP32-C5 C-ITX receiver specifications:

• Wireless module – ESP32-C5-WROOM-1 (ESP32-C5-WROOM-1-N16R8 or ESP32-C5-WROOM-1-N8R8)
  • SoC – ESP32-C5
    • CPU
      • Single-core 32-bit RISC-V processor @ up to 240 MHz
      • Low-power RISC-V core @ 40 MHz acting as the main processor for power-sensitive applications
    • Memory – 384 KB SRAM on-chip
    • Storage – 320 KB ROM
    • Connectivity
      • Dual-band (2.4GHz/5 GHz) 802.11ax WiFi 6, with 802.11b/g/n WiFi 4 standard fallback
        • 20MHz bandwidth for the 802.11ax mode
        • 20/40MHz bandwidth for the 802.11b/g/n mode
        • OFDMA (Orthogonal Frequency Division Multiple Access) mechanism for both uplink and downlink
        • MU-MIMO capability for downlink
        • Target Wake Time (TWT) support
      • Bluetooth 5.0 Low Energy (LE)
      • 802.15.4 radio for Zigbee 3.0 and Thread 1.3
  • Memory – 8MB PSRAM
  • Storage – 8MB or 16MB SPI flash
  • Antenna – PCB antenna
• Storage – MicroSD card slot
• Ethernet – 10/100Mbps Ethernet RJ45 port via KSZ8851SNL SPI to Ethernet chip
• USB – 2x USB-C ports for JTAG and UART
• Sensor – LM75BDP temperature sensor
• Power Supply
  • 7 V – 58 V input on active/passive PoE
  • TPS2378DDAR for 802.3af/at compliant active PoE
• Dimensions – 93 x 50 mm

The KiCAD 10 hardware design files (schematics, PCB layout, BoM…), the source code for the firmware, and a Node.js script that bridges raw 802.11 packets on NATS (Neural Autonomic Transport System) into tshark (Wireshark command line), and publishes the decoded JSON back to NATS are available on OpenTraffic’s Codeberg account.

The developer gave a talk at Graz Linux Days 2026 (German) about a month ago, and uploaded the presentation slides explaining the project (AI-translated version in English).  At the time, they had already deployed 20 receivers with ranges of several hundred meters in urban areas, and over 10 km with line-of-sight. The ESP32-C5 can be attached to a 4G LTE modem for internet connectivity, and an OpenSCAD enclosure is also provided.

How well this works depends on whether infrastructure like traffic lights and public transport implements 802.11p V2X connectivity, and of course, the number of users deploying such C-ITS receivers.

The ESP32-C5 C-ITS receiver board is not available for sale online in the traditional way, but seeing the interest after their talks, the developers ordered 450 pieces of the board, and you can purchase a board with an optional enclosure for about 20 Euros as part of a group buy. The instructions are on the Wiki, and they only ship to several countries within Europe, or you can pick up yours in Graz, Austria.

Thanks to Karl for the tip.

The post OpenTrafficMap ESP32-C5 C-ITS receiver board can help improve traffic efficiency using 802.11p V2X communication appeared first on CNX Software - Embedded Systems News.

SpacemiT has sent me a K3 Pico-ITX Chassis Kit for review. It’s based on the K3 Pico-ITX motherboard with the SpacemiT K3 16-core RISC-V Edge AI processor housed in a compatible chassis.

I’ll start the review with an unboxing, a teardown, and a first boot to the pre-installed Bianbu OS. In the second part of the review, I’ll perform feature testing and run several benchmarks (see early K3 benchmarks for reference) to evaluate the status of the software and performance of the system.

SpacemiT K3 Pico-ITX Chassis Kit unboxing

I received a kit in a retail package reading “RISC-V AI CPI K3 RVA23 Profile Chip” and a UGREEN USB-C dock with a few USB-A ports, HDMI output, and 100W USB PD support. The dock will make perfect sense once we connect the system for our first boot.

I was initially expecting a Pico-ITX SBC, so I was a little surprised to see a complete system/mini PC instead. It ships with a USB debug cable, a screwdriver, and a sheet in Chinese with two QR codes, one of which points to the user guide (available in English).

The front features a power button with LED and a 3.5mm audio jack.

Most ports are on the rear panel: 10GbE SFP+ cage, Gigabit Ethernet RJ45 port, four USB 2.0 ports, a USB OTG Type-C port, and a USB Type-C port with DisplayPort Alt. mode and USB PD for power.

K3 Pico-ITX Chassis Kit teardown

Since the kit comes with a screwdriver, it’s clearly designed to be opened. We can do so by loosening the four screws on the bottom of the enclosure.

The bottom cover comes off easily, and we can access the “SpacemiT MUSE_Pico-ITX” board. As a side note, one of the screws for M.2 slots was roaming freely in the case, so I had to put it back into place…

The main reason for people to open the case is to make use of the M.2 Key-M 2280 (PCIe Gen3 x4) slot for NVMe SSD or other module, or the M.2 B-Key 2242/3052 (PCIe Gen2 x2 + USB 2.0) socket and Nano SIM card for 4G LTE or 5G cellular connectivity.  RTI01 and RTI02 “Real-Time Expansion” connectors on the right might also be useful, but I’ve yet to find an expansion board for these…

Another reason is to connect the serial console for debugging. The Tx, Rx, and GND text above corresponds to the pinout of the 3-pin header. The documentation does not mention anything about the cable itself, so I might have mixed up the color of the wires above. I’ll check this in detail in the second part of the second. There’s also a 2-pin connector next to it for 12V DC power input.

I loosened four more screws and disconnected the System, Audio, and Battery (RTC) cables to take out the board. It didn’t come off that easily, and most people won’t need to do that since there’s no purpose for it, except to check the hardware or move the board to another chassis.

We’ll find all the main chips on this side. The SpacemiT K3 SoC (grey), a Winbond W25064JWSIQ flash (64 Mbit), what should be a 128GB UFS chip (Kingston UFS128-TY7B under the small thermal pad), two 8GB Rayson RS2G32LO5D4FDB-31BT LPDDR4x for 16GB of RAM, RealTek RTL8127ATF 10GbE and RTL8211F GbE controllers, a Slimport ANX7447 USB Type-C crosspoint switch, and an AU4562B step-down regulator.

The cooling solution is a heatsink with a PWM-controlled fan. We’ll also notice the RTC battery and WiFi/Bluetooth antennas placement in the photo below.

First boot to Bianbu OS

Let’s reassemble everything to boot the mini PC.  If you own a monitor with USB PD power output, then a single USB-C cable can carry power and video to the K3 Pico-ITX Chassis Kit. If not, another option is to use a 12V power supply and connect it to the internal 2-pin connector, but this requires opening the chassis.  So instead, I used the provided UGREEN USB-C dock to connect the power (65W USB-C adapter for Khadas Mind 2), and connect an HDMI display (Eazeye Radiant 15-6-inch Transflective LCD). I also added an RF dongle for a keyboard and mouse combo. I was greeted with the Bianbu OS setup wizard in Chinese, and but I could easily change that to English in two clicks.

I went through the setup wizard to set the timezone, keyboard layout, and create a user. Once done, we are asked to reboot the system.

I could login just fine, and quickly checked the system monitor showing the eight application cores, and eight AI cores.

I had no network connection at this stage, so I connected the K3 Pico-ITX to my WiFi 6 router and could browse the web normally using the pre-installed Chromium web browser.

Finally, I connected to the system over SSH to check system info with inxi:

jaufranc@CNXSOFT-spacemitk3picoitx:~$ inxi -Fc0
System:
  Host: CNXSOFT-spacemitk3picoitx Kernel: 6.18.3-generic arch: riscv64
    bits: 64
  Console: pty pts/0 Distro: Bianbu 4.0rc2 (Resolute Raccoon)
Machine:
  Type: RISCV System: SpacemiT K3 Pico ITX details: N/A
    serial: HW3MPK3161280213
CPU:
  Info: 16-core model: Spacemit X100 variant: riscv bits: 64 type: MCP cache:
    L2: 10 MiB
  Speed (MHz): avg: 2200 min/max: 614/2400:2000 cores: 1: 2200 2: 2200
    3: 2200 4: 2200 5: 2200 6: 2200 7: 2200 8: 2200 9: 2200 10: 2200 11: 2200
    12: 2200 13: 2200 14: 2200 15: 2200 16: 2200
Graphics:
  Device-1: saturn-hee driver: spacemit_drm_drv v: N/A
  Device-2: saturn-edp driver: spacemit_drm_drv v: N/A
  Display: unspecified server: Xwayland v: 24.1.8 driver: N/A tty: 80x24
    resolution: 1920x1080
  API: EGL v: 1.4,1.5 drivers: pvr,swrast
    platforms: gbm,wayland,surfaceless,device
  API: OpenGL v: 3.3 vendor: mesa v: 24.0.1 note: console (EGL sourced)
    renderer: softpipe
  Info: Tools: api: eglinfo,glxinfo wl: kanshi,wlr-randr x11: xdriinfo,
    xdpyinfo, xprop, xrandr
Audio:
  Device-1: simple-audio-card driver: asoc_simple_card
  Device-2: simple-audio-card driver: asoc_simple_card
  Device-3: simple-audio-card driver: N/A
  Device-4: simple-audio-card driver: N/A
  API: ALSA v: k6.18.3-generic status: kernel-api
  Server-1: PipeWire v: 1.6.0 status: active
Network:
  Device-1: Realtek RTL8127 10GbE driver: r8127
  IF: enP2p1s0 state: down mac: 50:0a:52:0b:82:18
  Device-2: Realtek RTL8852BE PCIe 802.11ax Wireless Network
    driver: rtw89_8852be
  IF: wlP4p1s0 state: up mac: b0:8c:b3:9a:83:68
  Device-3: k3-gmac driver: dwmac_spacemit_ethqos
  IF: end0 state: down mac: 50:0a:52:0b:e6:64
  Device-4: rfkill-gpio driver: rfkill_gpio
  Device-5: dwmac-5.10a driver: N/A
  IF: end0 state: down mac: 50:0a:52:0b:e6:64
  Device-6: dwmac-5.10a driver: N/A
  IF: enP2p1s0 state: down mac: 50:0a:52:0b:82:18
  Device-7: dwmac-5.10a driver: N/A
  IF: wlP4p1s0 state: up mac: b0:8c:b3:9a:83:68
Bluetooth:
  Device-1: Realtek Bluetooth Radio driver: btusb type: USB
  Report: hciconfig ID: hci0 state: up address: B0:8C:B3:9A:83:69 bt-v: 5.3
Drives:
  Local Storage: total: 119.27 GiB used: 6.27 GiB (5.3%)
  ID-1: /dev/sda model: TY7B-128 size: 119.27 GiB
Partition:
  ID-1: / size: 116.78 GiB used: 6.21 GiB (5.3%) fs: ext4 dev: /dev/sda3
  ID-2: /boot size: 223.7 MiB used: 58.8 MiB (26.3%) fs: ext4 dev: /dev/sda2
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 65.0 C mobo: N/A
  Fan Speeds (rpm): cpu: 3329
Info:
  Memory: total: N/A available: 15.63 GiB used: 1.8 GiB (11.5%)
  Processes: 352 Uptime: 1h 0m Init: systemd Shell: Bash inxi: 3.3.40

Everything seems to be properly detected, including the 16 RISC-V cores clocked up to 2.2 GHz, TY7B-128 UFS storage, 16GB of RAM, 10GbE networking, RealTek RTL8852BE  WiFi 6E and Bluetooth 5.3 module, and more. The idle temperature seems a little high at 65°C, so that’s something I’ll have to keep an eye on.

That will be all for today. It’s my first SBC with a Realtek RTL8127, and the second will be the ODROID-H5. Since the K3 Pico-ITX SBC comes with an SFP+ cage, I’ll need to purchase an SFP+ to RJ45 adapter for testing 10 Gbps Ethernet before the second part of the review.  In the second part of the review, I’ll run some benchmarks, the headless ones we’ve all done remotely, plus some others requiring a display, and test all/most features to check out what works and what doesn’t with Bianbu 4.0 OS.

I’d like to thank SpacemiT for sending the K3 Pico-ITX Chassis Kit for review. I have no idea where to buy the exact “K3 Pico-ITX Chassis Kit” I have received for review. SpacemiT relies on a range of distributors such as Banana Pi and Sipeed for the K3 Pico-ITX SBC ($399 for the 16GB/128GB model). The closest option to the “Chassis Kit” is the Milk-V Jupiter 2 with a Pico-ITX chassis using two external antennas. It sells for $575 for the 32GB RAM/256GB UFS version, as the 16GB/128GB model is out of stock.

The post SpacemiT K3 Pico-ITX Chassis Kit Review – Part 1: Unboxing, teardown, and first boot appeared first on CNX Software - Embedded Systems News.

Two ESP32-S31 development boards are currently in the works, and the documentation is already available. The ESP32-S31 was unveiled last March, and it’s the most feature-rich ESP32 wireless microcontroller so far with two RISC-V cores, Gigabit Ethernet, 2.4 GHz WiFi 6, Bluetooth, and 802.15.4 connectivity, LCD and camera interfaces, and more.

The ESP32-S31-Function-CoreBoard-1 development board is based on the ESP32-S31-WROOM-3 wireless module, and offers Gigabit Ethernet, USB 2.0 OTG, and onboard audio peripherals for connected IoT applications.

The ESP32-S31-Korvo-1 is a multimedia-focused development board based on the same ESP32-S31-WROOM-3 module, but featuring a dual-microphone array for speech recognition and near/far-field wake-up, two speaker connectors, a 4.3-inch LCD, a 3MP camera module, and a microSD card slot. It targets low-cost, low-power, connected audio/video and HMI applications.

ESP32-S31-Function-CoreBoard-1 development board

Specifications:

• Wireless module – ESP32-S31-WROOM-3
  • SoC – ESP32-S31NRV16
    • CPU
      • RISC-V HP (High-performance) RV32IMAFCP CPU @ 320 MHz with FPU, SIMD, etc.
      • RISC-V LP (Low-power) MCU core
    • Memory – 512 KB SRAM, 16MB PSRAM
    • Wireless –
      • 2.4 GHz WiFi 6 (802.11ax)
      • Bluetooth 5.4 with support for LE Audio, direction finding, Bluetooth Mesh 1.1, and Classic (BR/EDR)
      • 802.15.4 radio for Zigbee, Thread, and Matter
  • Storage – 8, 16, or 32MB flash (TBC)
  • Antenna – PCB antenna
  • Dimensions – 30 x 22 x 3.5mm
• Audio
  • On-board microphone
  • Speaker output port for up to 4 Ω, 3 W speaker
  • ES8311 low-power mono audio codec
  • NS4150B 3W mono Class D audio power amplifier
• Networking – Gigabit Ethernet RJ45 port via YT8531DC-CA PHY
• USB
  • USB 2.0 Type-A high-speed port, up to 500mA
  • USB 2.0 Type-C full-speed serial/JTAG port for debugging, flashing, and power
  • USB Type-C to UART port for power, flashing, and communication with the ESP32-S31 chip via the on-board USB-to-UART bridge.
• Expansions – 40-pin J2 GPIO header
• Misc – 2-pin J5 header for current measurement
• Misc
  • Reset and Boot buttons
  • 3.3V power LED
  • RGB LED (GPIO60)
• Power Supply
  • 5V via USB-C port
  • 5V to 3.3V DC/DC Converter
  • TPS2051C USB power switch (up to 500 mA output current limit)
• Dimensions – 65 x 55 mm

The ESP32-S31-Function-CoreBoard-1 requires a good USB 2.0 USB-A to Type-C cable and a computer running Windows, Linux, or macOS for development. You’ll find details on the documentation website, where you can also request samples if you have a proper project for it.

ESP32-S31-Korvo-1 multimedia development board

Specifications:

• Wireless module – ESP32-S31-WROOM-3 as described above, except the flash capacity is listed (16MB flash)
• Storage
  • MicroSD card slot (SDIO 3.0 capable)
  • Quad SPI NAND flash footprint, multiplexed with microSD interface
• Display – LCD connector for ESP32-S3-LCD-EV-Board-SUB3 (4.3-inch, 800 x 480 resolution)
• Camera – Camera connector for 3MP OV3660 camera module
• Audio
  • 2x speaker output ports, each with an NS4150B mono class-D amplifier to drive a 4Ω, 3W speaker.
  • 2x analog microphones connected to ES8389 low-power stereo codec with dual ADC/DAC, low-noise preamp, headphone driver, digital effects, analog mixing, and gain control.
• USB
  • USB 2.0 Type-A High-Speed OTG port, up to 500 mA output current
    USB Type-C UART port for power, flashing the firmware, and communication with the ESP32-S31 via the onboard USB-to-UART bridge (up to 3 Mbps).
  • USB Type-C port for power only
• Misc
  • Power switch
  • Reset and Boot buttons
  • Function Buttons:  PLAY, SET, VOL-, and VOL+ for UI control and audio application testing
  • Power LED
  • RGB LED (GPIO8)
• Power Supply
  • 5V via USB-C port
  • Buck DC-DC converter for 3.3V system power.
  • TPS2051C USB power switch with 500 mA current limit.
  • 5V to 3.3V LDO
  • 3.3V to 1.8V LDO for SPI NAND flash (not populated by default)
  • 3.3V to 2.8V and 3.3V to 1.5V LDOs for external camera module.
• Dimensions –  106.5 x 89.20 mm

The ESP32-S31-Korvo-1 board requires one or two speakers, two USB 2.0 Type-A to Type-C cables, and a computer running Windows, Linux, or macOS for development. Both boards are supported by the ESP-IDF framework, but since the chip is so new, not every feature will be supported at this time, and you’ll need to use the master branch. You can find more details and/or request samples for the Korvo devkit on the documentation website.

The post ESP32-S31 development boards unveiled for IoT, Smart Audio, and HMI applications appeared first on CNX Software - Embedded Systems News.

Huion Note E is an Android 15 note-taking device/electronic notebook powered by a MediaTek Helio G99 SoC and equipped with an 8.4-inch color LCD designed to work with a battery-free PenTech 3.0 pressure-sensitive stylus.

The device ships with 6GB LPDDR4 memory, 128GB storage, and a single USB-C port for charging and data. The company says the 1920×1080 display leverages “AG nano-etching technology to create a refined, matte surface that mimics the traditional pen-on-paper experience” and provides an e-Paper-like experience, while maintaining a 60 Hz refresh rate.

Huion Note E (X50) specifications:

• SoC – MediaTek Helio G99
  • CPU – Octa-core processor with 2x Arm Cortex-A76 cores @ 2.2 GHz, 6x Arm Cortex-A55 cores @ 2.0 GHz
  • GPU – ARM Mali-G57 MC2
  • VPU
    • Video Encoding – H.264, H.265/HEVC up to 2Kp30, 1080p60, 720p120
    • Video Playback – H.264, H.265/HEVC, VP-9 up to 2Kp30, 1080p60, 720p120
• System Memory –  6GB LPDDR4
• Storage – 128GB storage
• Display
  • 8.4-inch LED with 1920×1200  resolution, 60Hz  framerate
  • Contrast Ratio – 1000:1
  • Brightness – 300 nits (Typ.)
  • Color Gamut – 99% sRGB
  • Working Area – 180.3 x 112.7 mm
  • DC dimming and a soft-light display
• Audio
  • Built-in speaker
  • Dual microphone
• Camera – Rear-camera
• Wireless – Dual-band WiFi and Bluetooth 5.2
• USB – 1x USB 2.0 Type-C port for charging and data transfer (compatible with USB Type-C headphones)
• Stylus – Battery-free PW510 digital pen
  • 8,192 pressure sensitivity levels
  • 400 pps report rate
  • Tilt recognition
  • Quick eraser
  • PenTech 3.0 technology
• Misc
  • Power button
  • Fingerprint unlock
  • Protective case with magnetic connection for stylus
• Power Supply
  • 9V/2A via USB-C port
  • 4,500 mAh battery good for about 6.5 hours at 50% brightness; 2-hour charge time
• Dimensions – 203 x 143 x 7.4 mm
• Weight – 348 grams

On the software side, the Huion Note E runs Android 15 with “Smart Handwriting tools” to configure pressure sensitivity and type of brush (fountain pen, ball point pen, highlighter pen…), handwriting to text conversion, content search, audio recording and note synchronization, document annotation, and landscape/portrait modes support. The Huion Note app aims to ease note-taking on Android devices, including the Note E.

I previously experienced the company’s pressure-sensitive digital pen technology when I reviewed the Kamvas Pro 16 (2.5K) 15.8-inch drawing tablet with a similar PW517 8192-level stylus. That was quite a niche display targeting artists and graphic designers, and with the Note E (X50), Huion now aimed at the broader consumer market.

The Note E X50 “Smart Digital Notebook” sells for $369 on Amazon and the Huion store and ships with a protective case, a battery-free digital pen, a USB cable, a nib clip, ten replacement nibs, and a Quick Start Guide. You’ll find more details on the product page, including a user manual (download section).

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M5Stack Core StopWatch is an ESP32-S3-powered WiFi and Bluetooth development board with a 1.75-inch round AMOLED touch display, 16MB flash, and 8MB PSRAM designed for portable IoT devices, electronic badges, and wearables.

The device also features a 1W speaker and a MEMS microphone for voice interaction, two programmable buttons, a vibration motor, a 6-axis IMU sensor, an RTC, and expansion capabilities through a Grove connector and GPIO headers. It’s powered by a 450 mAh battery managed by an “M5PM1 multi-level power management” solution and charged over a USB-C port.

M5Stack Core StopWatch specifications:

• SoC – Espressif ESP32-S3R8
  • CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration
  • Memory – 8MB PSRAM
  • Wireless – WiFi 4 and Bluetooth 5.0 LE + Mesh connectivity
• Storage – 16MB flash
• Display – 1.75-inch AMOLED round touch display with 466 x 466 resolution
• Audio
  • 1W speaker
  • MEMS microphone
  • ES8311 audio codec
  • AW8737A amplifier
• USB – 1x USB Type-C port for power and programming
• Sensors – 6-axis IMU BMI270
• Expansion
  • 4-pin Grove connector
  • 7-pin and 6-pin 2.54mm pitch headers for up to 10x GPIO, UART, USB 2.0, VBAT, 3.3V, and GND
• Misc –
  • Power button, 2x programmable buttons
  • Built-in vibration motor
  • RX8130CE RTC chip
  • Lanyard hole
  • Rear magnetic attachment
• Power Supply
  • 5V via USB-C power
  • Built-in 450mAh battery
  • M5PM1 multi-level power management system
• Dimensions – 52.0 Ø x 15.5mm
• Weight – 39 grams

The company provides instructions and code samples to get started with the Arduino IDE using the M5Unified and M5GFX driver libraries, as well as PlatformIO. You’ll find these along with pinout and schematics on the documentation website.

It’s not quite the first ESP32-S3 devkit with a round AMOLED touch display, and competing products include the LILYGO T-Display-S3-AMOLED-1.43 and Waveshare ESP32-S3-Touch-LCD-1.85C, but the M5Stack device integrated the display and audio support in a more compact form factor. The Waveshare model can also handle audio, but it does so via a thicker audio expansion box.

The StopWatch touch AMOLED devkit is sold for $45 on AliExpress and the M5Stack store.

The post M5Stack StopWatch ESP32-S3 devkit offers 1.75-inch touch AMOLED, microphone, speaker, and GPIO expansion appeared first on CNX Software - Embedded Systems News.

Seeed Studio has just launched the reComputer RK3576/RK3588 Edge AI computers designed for developers, embedded AI innovators, robotics, industrial AI, vision AI, local LLMs, and real-world edge deployment.

Rockchip RK3576 and RK3588 computers are pretty common these days, and the Seeed Studio models offer triple video output, dual Ethernet (GbE or 2.5GbE), several USB ports, and M.2 expansion. But the most interesting part is probably the software with Armbian-based Linux OS and support for the reComputer AI Lab platform that enables one-click deployment of AI-accelerated computer vision, audio, and LLM/LVM demos.

reComputer RK3576/RK3588 specifications:

• SoC (one or the other)
  • Rockchip RK3576
    • Octa-core CPU – 4x Cortex-A72 cores at 2.2GHz, 4x Cortex-A53 cores at 1.8GHz
    • GPU – ARM Mali-G52 MC3 GPU
    • NPU – 6 TOPS (INT8) AI accelerator with support for INT4/INT8/INT16/BF16/TF32 mixed operations.
    • VPU
      • Video Decoder: H.264, H.265, VP9, AV1, and AVS2 up to 8K at 30fps or 4K at 120fps.
      • Video Encoder: H.264 and H.265 up to 4K at 60fps, (M)JPEG encoder/decoder up to 4K at 60fps.
  • Rockchip RK3588
    • Octa-core CPU – 4x Cortex‑A76  cores @ up to 2.4 GHz, 4x Cortex‑A55 core @ 1.8 GHz
    • GPU – Arm Mali-G610 MP4 GPU
    • NPU – 6 TOPS (INT8) AI accelerator with support for INT4/INT8/INT16/BF16/TF32 mixed operations.
    • VPU
      • Video decoder – 8Kp60 H.265, VP9, AVS2, 8Kp30 H.264 AVC/MVC, 4Kp60 AV1, 1080p60 MPEG-2/-1, VC-1, VP8
      • Video encoder – 8Kp30 H.265/H.264 video encoder
• System Memory
  • RK3576 – 4GB, 8GB, or 16GB LPDDR5
  • RK3588 – 8GB, 16GB, or 32GB LPDDR5
• Storage
  • MicroSD card slot
  • SPI flash for bootloader
  • Optional NVMe SSD via M.2 socket (see expansion section)
• Video Output
  • 1x (RK3576) or 2x (RK3588) HDMI 2.1 ports
  • DisplayPort 1.4 via USB-C port
  • 4-lane 22-pin MIPI DSI connector
• Video Input (RK3588 only) – HDMI 2.0 port
• Camera – 2x 22-pin 4-lane MIPI CSI connectors
• Audio – 3.5mm audio jack
• Networking
  • RK3576 – 2x Gigabit Ethernet RJ45 ports, one with PoE support (additional module required)
  • RK3588 – 2x 2.5GbE RJ45 ports, one with PoE support (additional module required)
  • On-board WiFi 6 and Bluetooth 5.4 with FPC antenna
  • Optional 4G LTE, LoRaWAN, or WiFi Halow via mini PCIe socket and SIM card slot (for cellular only)
• USB
  • RK3576 – USB 3.0 Type-A port, 3x USB 2.0 Type-A ports, 1x USB Type-C OTG port with DisplayPort Alt mode
  • RK3588 – 4x USB 3.0 Type-A ports, 1x USB Type-C OTG port with DisplayPort Alt mode
• Expansion
  • M.2 Key-M socket (PCIe 2.1 x1) for NVMe SSD or AI accelerator
  • RK3588 only – M.2 Key-M socket (PCIe 3.0 x4) for NVMe SSD or AI accelerator
  • 40-pin GPIO header
• Misc
  • Power, Recovery, and MaskROM buttons
  • Power, Status, and User LEDs
  • 2-pin header for RTC
  • 4-pin FAN header
• Power Supply – 9V-19V DC via power barrel jack
• Dimensions – 123 x 93 x 51 mm; PCB: 115 x 85mm
• Temperature Range
  • RK3576 – 0 to 60°C
  • RK3588 – 0 to 55°C
• Compliance – FCC/CE/TELEC/RoHS

The devices come with Armbian pre-installed in order to provide “long-term maintained system images, security updates, encrypted OS options, and OTA upgrade support for production-ready deployment”. They apparently worked with the Armbiab team on this, but neither Seeed Studio or the reComputer shows up on the website.

The company also offers the reComputer AI Lab platform, which includes optimized edge AI model demos for computer vision, LLM, VLM, speech-to-text (STT), and text-to-speech (TTS). The website also includes interactive tutorials, deployment tools, containerized applications, and community projects. You can also check the VLM + Yolo26 demo at the end of the article.

The reComputer RK3576 starts at $99 on the Seeed Studio’s store with 4GB of RAM, and the RK3588 model at $199 with 8GB of RAM on the same page. Both models may also soon show up on the company’s AliExpress store. Those are pre-orders with shipping scheduled to start on May 30, 2026.

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Flipper Devices has officially introduced the Flipper One open-source hardware portable Arm Linux platform and networking and Edge AI multi-tool powered by a Rockchip RK3576 octa-core Arm Cortex-A72/A53 SoC, and featuring a Raspberry Pi RP2350 for low-level control.

You may think of it as a successor to the popular STM32-based Flipper Zero hardware and wireless hacking tool, but the company stresses that the Flipper One is NOT a replacement for the Flipper Zero. It is a different product with mainline Linux kernel support, no binary blobs (probably not 100% true), and open-source drivers, and operating at a different level of the networking and wireless stacks with dual Gigabit Ethernet, Wi-Fi 6E, and optional 5G or 4G LTE modem.

Flipper One specifications:

• SoC – Rockchip RK3576
  • CPU
    • 4x Cortex-A72 cores @ 2.2GHz, 4x Cortex-A53 cores @ 1.8GHz
    • Arm Cortex-M0 MCU at 400MHz
  • GPU – ARM Mali-G52 MC3 GPU with support for OpenGL ES 1.1, 2.0, and 3.2, OpenCL 2.1, and Vulkan 1.2
  • NPU – 6 TOPS (INT8) AI accelerator with support for INT4, INT8, INT16, BF16, and TF32 mixed operations.
  • VPU
    • Video Decoder: H.264, H.265, VP9, AV1, and AVS2 up to 8K @ 30fps or 4K @ 120fps
    • Video Encoder: H.264 and H.265 up to 4K @ 60fps, (M)JPEG encoder/decoder up to 4K @ 60fps
• System Memory – 8GB LPDDR5
• Storage
  • 64GB UFS 2.2
  • MicroSD card slot (UHS-I SDR104)
• MCU subsystem
  • SoC – Raspberry Pi RP2350 dual-core Arm Cortex-M33/RISC-V microcontroller @ 150 MHz with 264KB SRAM
  • Storage – 16MB flash
• Display – 256 x 144 pixel display, 64-level grayscale, Gorilla glass; controlled by RP2350 MCU via QSPI
• Video Output
  • HDMI 2.1 port up to 4Kp120 with HDMI CEC support
  • DisplayPort 1.4 via USB-C port up to 4Kp120
• Audio
  • 3.5mm audio (stereo out + microphone) jack
  • Built-in microphone and speaker
  • Nuvoton NAU8822 audio codec
• Networking and wireless
  • 2x Gigabit Ethernet RJ45 ports via Realtek RTL8211F-CG controllers
  • Tri-band Wi-Fi 6 (802.11ax) 2×2 MIMO and Bluetooth 5.2 via WXT2AM2101 module (MediaTek MT7921AUN)
  • Optional 4G LTE or 5G modem via M.2 module and externally accessible Nano SIM (4FF) card slot
• USB
  • USB 3.1 Type-A host port
  • USB 3.1 Type-C host port
  • USB 3.1 Type-C host/device port with DisplayPort Alt. mode, 5V-12V USB PD power input
• Expansion
  • M.2 Key-B socket (PCIe 2.1 x1, USB 2.0, USB 3.1, SATA3, Serial Audio, UART / I2C / SIM card) for 2242/3042/3052 modules
  • 20-pin header for GPIOs from MCU and CPU, USB 2.0 for CPU, 5V, 3.3V, and GND
• Debugging – Debug port for RK3576 SoC and RP2350 MCU
• Misc
  • Directional touchpad, 5-button D-Pad
  • Push-to-talk button, 5x control buttons (Esc, View, Power, Edit, Run), App switcher button, and Back button
  • Power meter LEDs, network LEDs
  • Passive heatsink for cooling
  • Lanyard loop
• Power Supply
  • 5-20V USB PD via USB-C port (3.6V to 24V in PD PPS mode while charging the battery)
  • 7,000 mAh battery (note: mass production capacity not finalized)
  • TI BQ25792 charger IC up to 3.32A
  • TI BQ28Z610 fuel gauge
• Dimensions – 155 x 67 x 40 mm
• Weight – TBD
• Materials – PC/ABS body, TPU bumpers, PC/ABS buttons, anodized aluminum lanyard loop, anodized aluminum bracket

  

  

  

Flipper Devices partnered with Collabora software development company for the upstreaming work for the Rockchip RK3576 to make sure the Flipper One supports “full mainline Linux kernel with no binary blobs, no proprietary drivers, and no vendor-locked board support package”.  Some claims may be hard to meet, notably because the bootloader usually requires a closed-source binary blob for the RAM initialization (but an open-source alternative is being worked on), and more importantly, the firmware for WiFi and cellular is usually closed-source for regulatory (e.g., FCC) compliance.

Development is still in progress, and Flipper Devices welcomes users to contribute through the Developer Portal, containing information about hardware, firmware, Linux (Debian-based Flipper OS), UI using FlipCTL framework, testing, and documentation. It also includes task trackers, architectural discussions, and a live status of mainline Linux support. Finally, you’ll find several Flipper One-related repositories for the Linux build scripts, RP2350 MCU firmware, and more on GitHub.

Overall, the Flipper One will be a highly versatile, modular, open-source hardware and software Linux platform with networking and Edge AI capability. I’m using the future tense because the company is not quite ready to take orders at this time and will announce developer hardware availability, pricing, and consumer release timing in a future update.

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Procolored X one is a 3-in-1 machine which combines a UV color printer, a dual-laser engraver (20W diode + 2W IR), and a UV-DTF sticker maker into a single, compact, enclosed unit. It is designed to simplify workflows for small businesses and DIY makers by bringing multiple functions into a single system.

Traditionally, creating full-color engraved products requires multiple machines and a messy pre-coating step before printing. The X one simplifies this by using a special X-axis dual-track design that lets you switch between laser cutting and UV printing without moving the object, making the workflow faster and easier.

Procolored X one specifications

• UV Printing System
  • Printhead -XH6 Dual Printhead (promising up to a 5x efficiency improvement)
  • Maximum Print Width – 33 cm (Supports A3 and A5 platforms)
  • Print Speed – A3 full-size print in ~10+ minutes
  • Ink System – 250ml refillable tanks with smart ink monitoring (notably larger than the 100ml tanks found in typical desktop units)
  • Maintenance – White ink circulation and stirring, automatic ink supply, and an optimized 8ml auto-cleaning cycle
• Laser System
  • Modules – Interchangeable 20W Blue Diode Laser + 2W Red (IR) Laser
  • Engraving Speed – 100–300 mm/s (Blue Diode)
  • Engraving Precision – 0.1 mm
• UV-DTF – Roll-to-roll output for instant peel-and-stick applications (no laminator needed)
• Misc – Vision Positioning with IR Height Sensing for automatic object recognition and zero-error alignment
• Supported Materials  – Wood, metal, acrylic, plastic, leather, stone, cork, silicone, and more; total 400+

One major concern when combining a laser and a UV printer in a single machine is dust. Lasers create dust, and UV printheads are very sensitive to dust, which can easily clog them and cause problems. Procolored solves this with their unique dual-track system. It keeps the laser and UV printing separate: when the laser is working, the UV printheads stay off. This effectively prevents dust from clogging the printheads. The machine is built with a sturdy metal frame, features a stylish orange-lit chamber, and includes a built-in touchscreen for easy control. It also uses a professional G7-certified color system for accurate, high-quality prints.

Speaking about the prints, the company also mentions that the machine comes with integrated UV varnish with instant-curing technology, which enables it to create raised, tactile, embossed “2.5D textures” and high-gloss finishes on materials.

The company does not clearly discuss software support, but a YouTube video shows they are now using a new all-in-one platform to control UV printing, laser engraving, and UV-DTF sticker making. Procolored developed this software in-house specifically for this machine, instead of relying on third-party tools. It supports both Windows and macOS. The software also handles smart features like automatic alignment, height sensing, and design tools, making it easier to use. This is especially useful for Mac users, as many similar machines only support Windows.

Previously, we have reviewed various laser engravers like the Creality Falcon A1 Pro, the ACMER X1, the LaserPecker LP5, and others, but none of these could handle color printing on the material, which makes the Procolored X rather a unique machine.

The Procolored X one full-color laser engraver is available on Kickstarter and has already surpassed its $100,000 goal with over $700,000 raised so far. It’s available in three bundles. The Basic bundle ($3,799) includes the machine, a 20W laser, platforms, inks, and accessories; the Standard bundle ($3,999) adds a UV-DTF kit and rotary attachment; and the Professional bundle ($4,199) also includes a 2W IR laser. Extra add-ons like an air purifier and ink bottles are sold separately. Shipping is about $199 to the US and $299 to Europe/UK, with no shipping to South America, Saudi Arabia, or India. Delivery is expected around January 2027.

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Synaptics Coralboard is a development board powered by a Synaptics Astra SL2619 Edge AI SoC with a 1 TOPS Synaptics Torq inference engine implementing a Google Coral NPU, and supporting hardware-accelerated Google Gemma 3 lightweight models.

The board features 2GB of RAM and offers MIPI camera and display interfaces, a microSD card slot, a USB Type-A port, microphone inputs (I2S), mikroBUS and Qwiic- expansion connectors, and optional Wi-Fi and Bluetooth connectivity through an M.2 expansion slot.

Synaptics Coralboard specifications:

• System-on-module – Grinn AstraSOM-261x
  • SoC – Synaptics Astra SL2619 SoC with 2x Cortex-A55 cores @ 2GHz, 1x Cortex-M52 core @ 200MHz, and 1 TOPS Synaptics Torq (Google Coral NPU)
  • System Memory – 2GB DDR4 @ 3200Mbps (optionally 1GB)
  • Storage – 16GB flash, up to 64GB
  • Input Voltage – 3.2V to 5.5V
  • Dimensions – 25 x 25mm, LGA178 package
• Storage – MicroSD card slot for mass storage
• Display – 4-lane MIPI DSI connector
• Camera
  • 22-pin 2-lane MIPI CSI connector
  • Google I/O 2026 edition variant – Arducam OV5647 1080p mini camera module
• Audio interfaces – I2S2 and I2S3 audio connectors (1.8V)
• Connectivity – Optional WiFi and Bluetooth via M.2 module
• USB
  • USB-A host port
  • USB-C port for power (5V only, no power negotiations) and data (device mode)
• Expansion
  • M.2 E-key or E+A key slot (SDIO 3.0, UART/PCM, and GPIOs)
  • I3C connector (1.8V)
  • Qwiic Connect System for I2C
  • mikroBUS connector – Google I/O 2026 edition variant: MikroBUS Sensor HAT board with camera connector, 2x microphones, a piezo buzzer, and a few user LEDs.
  • 20-pin header GPIO header
  • I/O voltage – 3.3V unless otherwise stated
• Debug interfaces
  • UART console for kernel messages
  • JTAG interface, THT holes for use with POGO-pin probe clip
  • Shunt resistors and related TPs (for power measurements of various functions) are accessible by pogo pins from the add-on board.
• Misc
  • Reset and user buttons
  • 3x LEDs (1x power, 2x user)
• Power Supply
  • 5V via USB-C port
  • 2-pin battery connector without charging functionality
• Dimensions – TBD

The board runs a Yocto Linux distribution, and is supported by the Synaptics Astra SDK with necessary bootloaders, kernel drivers, and configuration files. It can run Google’s Gemma 3 270M model out of the box via the open-source, MLIR-based Synaptics Torq toolchain. Learn about to get started with the board on the Google Developers website.

It is being showcased at Google I/O 2026 as part of “Jellectronica” live, AI-powered musical performance combining computer vision, real-time inference, and generative audio. In practice, an NPU-accelerated YOLOv8 object detection model tracks the movement of jellyfish from the Monterey Bay Aquarium via a live stream, and the motion data is translated into control signals that drive a generative music performance powered by Google DeepMind’s Lyria Realtime model. So basically, a live concert by a bunch of jellyfish “performers”. Watch the video demo below.

When I asked a representative (PR company) about pricing and availability, the current board is a limited edition specially made for Google I/O 2026 only. However, general availability and pricing of the Synaptics Coralboard will be announced later this year. A few more details may be found on the product page, and you can register your interest by filling out this form, but note that it reads: “Submission does not guarantee availability or participation“.

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Little Gadgets’ Hacknect is an ESP32-S3-powered wireless USB Type-A hacking cable with Wi-Fi control, HID automation for keyboard/mouse events, payload deployment, and a microSD card slot hidden in one of the Type-A connectors.

The USB cable is designed for makers, developers, automation enthusiasts, and cybersecurity researchers and can be wirelessly controlled from your smartphone or computer. It just looks like a normal cable, so any free USB cable that comes your way may look suspicious in the future.

Hacknect specifications:

• Wireless SoC – ESP32‑S3 with WiFi 4 and Bluetooth 5.x
• Storage – MicroSD card slot (inside one of the USB Type-A ports)
• USB – 2x USB Type-A male ports (Full-speed, 12 Mbps)
• Features:
  • Keystroke injection – Automated keyboard payloads using HID emulation.
  • Mouse injection – Simulated mouse movements and automated actions.
  • Payload slots – Store and manage multiple payloads directly on the device.
  • Wi‑Fi Triggers – Trigger actions wirelessly from smartphones or computers.
  • Self‑Destruct Mode – Quickly erase stored payloads and sensitive data.
• Dimensions – TBC (mostly looks like a standard USB-A to USB-A cable)

The AHacknect cable can be controlled through mobile devices or desktop computers and laptops through a web‑based control panel accessible from a compatible web browser. You can just click on one of the topions to launch payloads instantly. Here are the options:

• Self destruct
• Keystroke injection
• USB keylogger
• Payload drop
• Send file
• Lock system
• Network disconnect
• Packet viewer
• System analyzer
• System reboot
• Remote console
• USB device monitor
• WiFi triggers

Technical details are fairly light for an “open-source” project, but we’re told that the firmware source code, example payloads, documentation, demo projects, getting started guides, and example automation scripts will be released once the cables start shipping.

It’s not the first such USB hacking cable around, as we previously covered the Hackstar cable with RP2040 or ESP32-S3 MCU offering similar features minus the microSD card slot.

The Hacknect has recently launched on Kickstarter and raised close to $14,000 so far.  Like other security-related/hacking devices, there’s a high premium compared to the actual BoM cost of the device, and rewards start at 65 Euros (about $75 US) for a white or red cable for the “Early Bird” pledge. This doesn’t include shipping, which adds about $19 US, and deliveries are expected to start by August 2026.

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Hardkernel ODROID-H5 is an affordable Intel Core i3-N300 octa-core Alder Lake-N SBC providing a 10GbE RJ45 networking jack, and four M.2 PCIe slots for storage, wired/wireless networking, or AI accelerator expansion.

It relies on the same SoC as in the earlier ODROID-H4 Ultra SBC, but trades a single PCIe Gen3 x4 M.2 slot and four SATA ports for four M.2 slots, and upgrades from dual 2.5GbE  to single 10GbE. It still features four USB ports, but only one USB 3.0 port, and three USB 2.0 ports.

ODROID-H5 specifications:

• SoC-  Intel Core i3-N300
  • CPU – Octa-core “Alder Lake-N” processor @ up to 3.8 GHz (Turbo single-core) or 2.3 GHz (Turbo multi-core) with 6MB cache
  • GPU – 32EU Intel UHD Graphics @ 1.25 GHz
  • TDP: 7W
• System Memory – Up to 64GB DDR5 4800 MHz SO-DIMM memory
• Storage
  • Up to 4x 2280 NVMe SSDs via M.2 slots (See Expansion section)
  • eMMC flash connector
  • Optional SATA expansion card adding 6x SATA ports
• Video and Audio Output
  • HDMI 2.0 ports up to 4Kp60
  • 2x DisplayPort connectors up to 4Kp60
  • Triple independent display support
• Networking
  • 10GbE RJ45 port with WoL support via Realtek RTL8127AT 10 Gbps Ethernet controller; PCIe Gen3 x2; tested up to 9.49 Gbps with iperf3.
  • Optional 10GbE M.2 card(s)
  • Optional WiFi 6E or WiFi 7 via third-party M.2 modules
• USB
  • 1x USB 3.0 Type-A port
  • 3x USB 2.0 Type-A ports
• Expansion
  • 3x M.2 (PCIe Gen3 x2) slots
  • 1x M.2 (PCIe Gen3 x1) slot
  • 24-pin I/O expansion port with 2x I2C, 3x USB 2.0, 1x UART, 1x HDMI-CEC, 1x external power button, 5V, 3.3V, and GND
• Misc
  • Power and Reset buttons
  • System LEDs for Power, Sleep, PMIC, and NVMe (data transfer)
  • Passive heatsink
  • 4-pin PWM + Tacho fan connector for optional 12V fan
  • Dual BIOS with backup battery
• Power Supply – 11-20V via 5.5/2.1mm DC jack (15V/4A DC adapter recommended)
• Power Consumption
  • Headless Idle – 3.3W
  • Desktop GUI Idle – 4.5W
  • CPU + GPU stress test – 25W
  • Power off – 0.4W
  • Suspend – 0.9~1.3W
• Dimensions – 120 x 120 x 44 mm
• Weight – 320 grams with heatsink

ODROID-H4 and ODROID-H5 SBCs are quite expandable, and the Korean company provides multiple expansion cards for their Intel SBC. However, the new ODROID-H5 doesn’t support them all, and unsurprisingly, drops support for M.2 expansion cards (since it already has four) and the 2.5GbE networking card.

Here’s the ODROID-H5 board fitted with a 6x SATA port M.2 module on top…

… and three M.2 modules (NVMe SSD, Hailo AI accelerator…) and a DDR5 SO-DIMM module on the bottom side.

The company tested the board with Ubuntu 24.04/26.04 (host), Windows 11, and Debian 13 (Guest OSes) using hardware virtualization (VT-x), each showing on a separate display to demonstrate operating system support and triple display configurations.

The company also offers a range of cases and accessories, just like for the previous ODROID-H series boards. You’ll find more details in the long forum announcement about the new ODROID-H5 board and in the wiki.

I can’t find a direct competitor to the ODROID-H5, but the closest alternatives are probably 10GbE Alder Lake-N platforms, such as the iKOOLCORE R2 MAX mini PC and MW-N100-NAS mini-ITX motherboard, although they are based on older 10GbE controllers, rather than the new, low-cost, power-efficient RTL8127 10GbE PCIe controller.

The ODROID-H5 SBC sells for just $250, which looks pretty good for an octa-core Intel SBC with 10GbE networking, four M.2 sockets, and triple display support. However, it’s a barebone system at that price, and you still need to add storage, memory, a 15V/4A power supply ($11), and potentially other accessories such as an enclosure, wireless module, and so on.

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After SpacemiT officially launched the K3 Pico-ITX SBC, and the K3 chip entered volume production, an Edge AI mini PC, and a laptop motherboard (for Framework 13) have been released. To add to the list, Firefly has recently launched the CSC2-N48SPK3, a massive 2U rack-mounted server based on multiple SpacemiT K3 SoCs designed to bring RISC-V computing power to enterprise racks.

While consumer devices and modular laptops are great for developers, large-scale server-side AI workloads require more powerful hardware. The CSC2-N48SPK3 addresses this with up to 48 SpacemiT K3 RISC-V compute nodes, each with an octa-core X100 SoC delivering up to 60 TOPS (Sparse) AI performance, up to 32GB LPDDR5 RAM, 128 GB UFS storage, and an optional NVMe SSD. To manage all of these nodes, Firefly relies on a Rockchip RK3588 octa-core Arm processor as the central control node.

Firefly CSC2-N48SPK3 specifications:

• Server Form Factor – 2U rack-mounted 48 Node high-density server
• Architecture
  • 48 distributed computing nodes + 1 control node
  • Total AI Performance – 2880 TOPS (60 TOPS x 48, INT4)
• Compute Nodes (x48)
  • SoC – SpacemiT Key Stone K3 8-core X100M 64-bit RISC-V AI processor; up to 2.4GHz
  • Performance – 130K DMIPS general-purpose computing power per node; single-core SpecInt2006 exceeds 9.0/GHz
  • Compliance – Fully complies with RVA23 Profile
  • Memory – Up to 32GB LPDDR5 per node (available in 8GB, 16GB, or 32GB)
  • Storage – 128GB UFS 2.2 per node
• Control Node / BMC (x1)
  • Based on Rockchip RK3588 octa-core Cortex-A76/A53 processor @ up to 2.4GHz
  • RJ45 Console port (BMC debug serial port, 115200 baud rate)
• Storage – 48x M.2 2280 PCIe NVMe SSD slots (optional)
• Display
  • HDMI out  up to 1080p60 for BMC management
  • Touch display on the front panel for real-time device info (temperature, fan speed, network IP, etc.)
• Networking
  • 4x 10GbE SFP+ cages
  • Gigabit Ethernet RJ45 port (MGMT, used as BMC management network)
• USB – 2x USB 3.0 ports (lower port supports OTG for BMC upgrades via USB flash drive)
• Misc –
  • Reset, Power, and Restart BMC buttons
  • 12x high-speed cooling fans
• Power – 2x AC redundant power supplies (hot-swappable)
• Dimensions – 724.0 x 430.0 x 88.8 mm
• Weight – 23.1 kg (net), 25.3 kg (with packaging)

The server supports the RVV vector extension, native FP8 inference, and multimodal acceleration, delivering over 10 tokens/s on local 30B parameter models. It ships with a pre-installed Linux distribution and supports build systems like Open Build Service and Koji. Firefly claims it is much faster than emulation, with single-node performance up to 7× higher than x86 QEMU. In one example, the RISC-V K3 node compiled the Linux 6.18 kernel in 22 minutes and 28 seconds, compared to 2 hours and 50 minutes on an Intel Xeon Gold 6548Y+ running QEMU.

On the hardware side, the storage options are very extensive. The board includes 48 M.2 PCIe slots, so each compute node can have its own dedicated NVMe SSD. If you use 8TB or 16TB SSDs, that adds up to as much as 48 × 16TB, or 768TB of storage. It also supports security and virtualization, including three-level privilege modes (M/S/U), built-in protection against Specter and Meltdown attacks, and full hardware virtualization using RVH1.0, RV AIA, and RV IOMMU extensions. Previously, we have written about several interesting Arm-based rackmount servers, including Firefly’s own Cluster Server R2 and Huawei  Taishan X6000 V2 Server, both of which are 2U servers.

The Firefly CSC2-N48SPK3 RISC-V server is now available, but as expected for enterprise rackmount hardware, it is quite expensive. Pricing on the official Firefly store starts at $38,829 for a configuration with 48 compute nodes, each with 16GB RAM and 128GB storage, along with an 8GB RK3588 control node. A version with 32GB RAM per node is also available. More details are available on the product page.

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Canonical has just introduced Ubuntu Core 26, based on the recently-released Ubuntu 26.04 LTS and designed for IoT devices and embedded systems, with precise Linux builds, optimized OTA updates, live kernel patching, and enhanced hardware-backed protection for mission-critical deployments.

Offered with up to 15 years of security maintenance, Ubuntu Core 26 minimal, immutable operating system enables reduced installation times, 90% smaller OTA updates, and precision-led builds via Chisel. Every component is a containerized snap, just like in prior Ubuntu Core releases. Canonical says it can help companies meet requirements for the EU Cyber Resilience Act (CRA) with securely designed and private AI deployments relying on hardware-based trust.

Ubuntu Core 26 highlights:

• Faster snap installation and updates – An improved snap-delta format reduces update sizes between 50% and 90% for most snaps. For instance, updates to the Core base snaps dropped from 16MB to 1.5MB in size. This lowers data usage and increases uptime.
• Precision builds with Chisel – The build system relies on Canonical’s release-specific package slice definitions, enforcing explicit, traceable dependencies. As a result, every file in the filesystem can be attributed to its originating slice and source package, improving the accuracy of integrity checks and vulnerability triage. The company explains this contrasts with approaches like Yocto builds, where provenance and dependency closure are largely implicit in layered recipes and post-processing. The new build system also contributes to a 7% reduction in base image size.
• CRA compliance through hardware-rooted security – Canonical assumes Manufacturer responsibilities under the CRA for the operating system’s release cycle by providing security maintenance for its core modules, continuous CVE monitoring and coordinated disclosure, and compliance with IEC 62443-4-1 (Cybersecurity in Industrial Automation and Control Systems).
• Livepatch rebootless kernel patching now works on both AMD64 and ARM64 targets.
• Developer tools improvements
  • New system snaps that speed up device deployment to new features in Snapcraft
  • Ubuntu Frame display server now supports multiple graphical applications on a single display, with configurable layouts, custom client placement, and a new accessibility launcher.
  • Canonical Observability Stack, an observability solution built on Juju and Kubernetes, enables Ubuntu Core to stream logs and metrics from the device to Cloud-based or private Grafana, Loki, and Prometheus infrastructure.
  • Snapcraft components offer a flexible new way to distribute large or optional resources, such as debug symbols, translations, or optional drivers, alongside their main snap without bloating the base installation.
• New API documentation – The Snapd REST API is now OpenAPI compliant and includes overhauled Swagger-based documentation.

Ubuntu Core requires 512MB RAM, 1GB storage, and is compatible with the following architectures: AMD64 (Intel/AMD 64-bit), ARM64 (64-bit Arm), ARMHF (32-bit Arm), and RISCV64 (64-bit RISC-V). Canonical provides Ubuntu Core 26 testing images for Generic x86 systems and Raspberry Pi 4/5 SBCs. Additional details may be found in the documentation.

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Waveshare’s “Isolated RS232 / RS485 / CAN / CAN FD Expansion Board For Raspberry Pi” kit transforms your Raspberry Pi 4B or 5 into an industrial computer with a DIN rail or wall mount enclosure.

The solution also provides access to isolated interfaces, including two RS485, RS232, CAN FD, and CAN Bus interfaces, as well as 7-36V DC input through screw terminals. The complete solution also benefits from the Raspberry Pi’s Gigabit Ethernet, four USB ports, and full-size HDMI port (via adapter), as well as support for Raspberry Pi HAT and PCIe expansion boards for NVMe SSD, an additional GbE port, 4G LTE/5G cellular, etc…

Specifications:

• Compatible SBCs – Raspberry Pi 4B and Raspberry Pi 5
• Host interface – SPI + UART
• Isolated industrial interfaces via screw terminals
  • 1x CAN FD with 5kbps ~ 8 Mbps baudrate via MCP2518FD + MCP2562FD chips
  • 1x CAN Bus with 5kbps ~ 1 Mbps baudrate via MCP2515 + SN65HVD230 chips
  • 2x RS485 with 300 bps ~ 921600 bps baudrate via SC16IS752 + SP485 chips
  • 1x RS232 with 300 bps ~ 921600 bps baudrate via SP3232EEN chip
• Expansion
  • Optional NVMe, Ethernet, USB, 4G/5G through PCIe interface (Raspberry Pi 5 only)
  • Raspberry Pi HAT compatibility through 40-pin GPIO header (note: partial due to height restrictions and potential interference with SPI/UART)
• Misc – “Eco-friendly” plastic case with support for wall-mount & rail-mount installation
• Power Supply (one or the other)
  • 5V via USB Type-C port on Pi5 Connector Adapter (B)
  • 7-36V DC wide voltage input via screw terminals
• Dimensions – 154.6 × 83.7 × 59 mm
• Weight – 323 grams (kit without Raspberry Pi)

Software-wise, the kit is supported by Mike McCauley’s C library for Broadcom BCM2835, the wiringPi library, and various Python packages. You’ll find the schematics (PDF), RS-485 and CAN bus code samples, and instructions to get started on the wiki.

It’s far from the first Raspberry Pi industrial solution, but most are complete Raspberry Pi CM5-based industrial PC or controllers, although there are a few Raspberry Pi 5 industrial computers. The Waveshare kit enables users to convert an existing Raspberry Pi 4 or 5 board with RS232, RS485, and CAN Bus interfaces, a wide input voltage range, and a DIN rail enclosure at a relatively low cost.

Waveshare sells the “Isolated RS232 / RS485 / CAN / CAN FD Expansion Board For Raspberry Pi” kit for about $60 on AliExpress, $68.99 on Amazon, and $54.99 on the company’s online store.

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The ESP32-S3 PowerFeather V2 board is an ESP32-S3 WiFi and BLE IoT board with an Adafruit Feather form factor that supports LiFePO4/LFP batteries, as well as Li-Ion or LiPo batteries, and up to 18V DC input for solar panel connection.

As one could have guessed, it’s an update to the ESP32-S3 PowerFeather board introduced in 2024 with support for solar panel input, Li-Ion, and LiPo batteries. The V2 design is virtually identical, except it features an Analog Devices MAX17260 fuel gauge and a TPS631013 buck-boost regulator that keeps 3.3 V stable to add support for LiFePO4 batteries. Lithium Iron Phosphate batteries are said to be safer and longer-lasting than Li-ion or LiPo batteries, albeit at the cost of lower energy density.

ESP32-S3 PowerFeather V2 specifications:

• ESP32-S3-WROOM-1-N8R2
  • SoC – ESP32-S3
    • CPU – Dual-core Tensilica LX7 up to 240 MHz
    • Memory – 512KB SRAM, 16 KB RTC SRAM
    • Wireless – 2.4 GHz WiFi 4 and Bluetooth 5 LE + Mesh; PCB antenna
  • Memory – 2MB QSPI PSRAM
  • Storage – 8MB QSPI flash
• USB – USB Type-C OTG port for power and programming
• Expansion
  • 2x 16-pin 2.54 mm pitch headers with 23x multi-function GPIO:
    • UART, I2C, SPI, I2S, SDIO, PWM, CAN, RMT, Camera, LCD capable
    • Analog – 6x analog input capable
    • 5x touch input capable
    • 12x RTC capable (deep sleep pin hold, wake-up source)
    • Semitec 103AT input on thermistor pinhole
  • 4-pin JST SH STEMMA QT connector with I2C
• Misc
  • User and Reset buttons
  • Charging status LED (red), user LED (green)
• Power Management
  • Power Supply
    • 5V/2A via USB-C port (VUSB)
    • 5V to 18V DC up to 2A via VDC pin
    • Up to 4.2V/2A via 2-pin JST PH battery connector; BQ25628E battery charger
    • Maintained supply voltage (can be used to set MPP voltage)
  • Output
    • 3.3V up to 1A shared between board, 3V3 header pin and VSQT STEMMA QT connector
    • 3.3V to 4.2V up to 3A shared between board and VBAT header pin
    • 5V to 18 V up to 2A shared between board and VS header pin
    • TPS631013 3.3V buck-boost regulator
  • Monitoring
    • Supply – Current and voltage measurements, good supply detection
    • Battery – Voltage, current  (charge/discharge), and temperature measurements; charge estimation; health & cycle count estimation; time-to-empty and time-to-full estimation; low charge, high/low voltage alarm; MAX17260 fuel gauge with support for Li-Ion, LiPo, and LiFePO4 chemistries
  • Battery protection
    • Undervoltage Detect @ 2.2 V, Release @ 2.4 V
    • Overvoltage Detect @ 4.37 V, Release @ 4.28 V
    • Overcurrent protection @ 3A
    • Trickle charging safety timer @ 1 hr
    • Temperature-based charging current reduction based on JEITA, cutoff at 0°C and 50°C.
  • Misc – 3V3 enable/disable; VSQT enable/disable, FeatherWing enable/disable
  • Power States – Ship mode, Shutdown mode, and Power cycle
• Power consumption using BATP (at about 3.7V) vs V1
  • Deep-Sleep, Fuel Gauge Enabled – 24 μA  vs 26 μA (initial) and 18.5 μA (settled)
  • Deep-Sleep, Fuel Gauge Disabled – 19 μA vs 18 μA
  • Ship Mode, Fuel Gauge Disabled – 1 μA vs 1.5 μA
  • Shutdown Mode, Fuel Gauge Disabled – 1 μA vs 1.4 μA
• Dimensions – 65 x 23 x 7 mm (Adafruit Feather form factor, supports FeatherWings); 2x 2.5 mounting holes

Power consumption has changed due to the new regulator and fuel gauge, but it remains in the same range.

Alongside the hardware, the PowerFeather-SDK V2 has also been released for programming the board with the Arduino IDE or the ESP-IDF framework. The main change is adding support for LiFePO4, precisely for charger and fuel gauge configuration. Sample code reports battery and supply information, but doesn’t need to care about the battery type since it’s automatically detected by the SDK.  The documentation for the V1 and V2 boards looks fairly detailed, and includes guides to reduce power usage, use a solar panel, and create an ESPHome device.

While looking for alternative ESP32 boards with LiFePO4 battery support, I didn’t find any, but noticed several people trying to hook up this type of battery to their ESP32 boards, so it could be useful to some. Having said that, we did cover several Raspberry Pi solutions compatible with LiFePo4 battery, including the LiFePO4wered/Pi+ UPS HAT and, more recently, the AQEX qUPS-P-BC-2.0 UPS HAT, which works with a range of battery chemistries, including LFP.

The price of the ESP32-S3 PowerFeather V2 is the same as the V1, and the board goes for $30 on Elecrow. I was curious about the price of LiFePO4 batteries, and prices start at about $4 for a 3.2V/7000 mAh battery. It can go much higher depending on capacity and voltage. I also saw a 48V/300Ah (15kWh) LiFePO4 battery to power a full-house energy storage for close to $1800, and clearly not suitable for this little ESP32-S3 board….

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Semtech FX86E is a 5G RedCap and 4G LTE cellular modem designed for industrial IoT applications such as rugged, long-range security cameras, heavy-duty vehicles, and various solar/battery-powered applications.

Based on the company’s EM8695 M.2 module powered by a Snapdragon X35 5G RedCap modem, the pre-certified modem supports public and private networks, boasts a MIL-STD-810H military-grade design, IP30 protection, E-Mark certification, and low power consumption.

Semtech FX86E specifications:

• SoC/Memory/Storage – TBD
• Cellular
  • 5G RedCap (Sub-6 Ghz) and LTE Cat-4
  • Frequency bands
    • 5G RedCap – 5G Sub-6 Ghz (FR1 1CC): n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n30, n38, n40, n41, n48, n66, n70, n71, n77, n78, n79
    • 4G LTE – LTE (Cat-4 DL / Cat-3 UL): B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17, B18, B19, B20, B25, B26, B28, B30, B34, B38, B39, B40, B41, B42, B43, B48, B66, B70, B71, B106
  • Nano SIM (4FF) slot
  • Antenna – Optional 5G/4G adhesive mount puck antenna
  • Approvals – FCC, PTCRB, IC, GCF, RED, RCM (Planned)
  • Telecom & Carrier – Telstra, DoCoMo, SoftBank, KDDI, Anterix, AT&T, Verizon, T-Mobile
• Ethernet – 10/100Mbps Ethernet RJ45 port
• USB – Micro USB 2.0 port
• Misc
  • Signal LED, user LED
  • Mounting options – Bracket for screw/wall and DIN rail mounting
• Power Input – 4.75V to 32V DC
• Dimensions – 82 x 60 x 32 mm including connectors
• Weight – 158 grams
• Temperature  Range – -30°C to +75°C (MIL-STD-810H, test methods 501.7, 502.7)
• Humidity – 95% relative humidity over a temperature range of +20°C to +60°C  (MIL-STD-810H, test methods 507.7)
• IP Rating – IP30
• Vibration and Shock
  • MIL-STD-810H (test methods 503.7, 514.8, and 516.8)
  • SAEJ1455 (Sec 4.10.4.2 and 4.11.3.4)
• Vehicles certifications – E-Mark UN ECE Regulation No.10 Rev 7, CB IEC62368-1 and UL Listed SAEJ1455 (Sec 4.13.1, 4.13.2)
• ESD – 8KV contact discharge, 15KV air discharge
• Hazardous Locations – Class 1 Div 2 (C1D2); planned

On the software front, the system runs OpenWrt with an “intuitive, browser-based ” web UI interface for device configuration and network management. Semtech also mentions boot protection and firmware over-the-air (FOTA) updates via secure HTTPS. Documentation is limited (non-existent) for the modem itself, but you can find some resources for the EM8695 module itself. including AT command set, firmware, Windows drivers, etc…

Semtech/Sierra Wireless didn’t provide pricing information for the FX86E 5G Red Cap modem, but it should now be available, considering it was sampling during Embedded World 2026, last March. For reference, the EM8695 M.2 module alone is sold for $152.90 on Techsip. Additional information about the FX86E modem can be found on the product page and in the press release.

Thanks to TLS for the tip.

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Back in November 2024, we wrote about Qualcomm’s QCC730M and QCC74xM modules for low-power IoT devices, but at the time, there was no evaluation board EVK for those SoCs. Fast forward to today, and the official development boards for the QCC74x series have finally been released, complete with a surprisingly affordable price tag.

The Qualcomm QCC74xM EVK is a tri-radio evaluation board with Wi-Fi 6, Bluetooth 5.4, and IEEE 802.15.4 (Thread/Zigbee) with a price tag of just over $13. But what is interesting is that, while it carries the Qualcomm brand, documentation from the Zephyr Project clearly shows that the QCC74x series is actually based on and mostly equivalent to the Bouffalo Lab BL61x series, specifically the BL618.

Qualcomm QCC74xM EVK specifications:

• Wireless Module – Qualcomm QCC74xM LGA Module (QCC743M, QCC744M, or QCC748M depending on the board variant)
  • CPU – 32-bit RISC-V processor (RV32IMAFCP) @ up to 325 MHz with FPU and DSP
  • Memory and Storage
    • 484 KB SRAM (with 48 KB Cache) and 128 KB ROM on-chip
    • 8 MB stacked pSRAM (QCC748M only)
    • 16 MB stacked NOR flash
  • VPU – Motion JPEG (MJPEG) video encoding up to 720p (QCC748M only)
• Display – DBI via GPIO (QCC748M only)
• Camera – DVP via GPIO (QCC748M only)
• Audio
  • I2S (Master/Slave) interface
  • 1x DAC for speaker output and 1x ADC for MIC input via GPIO  (QCC748M only)
• Networking and wireless
  • 10/100Mbps Ethernet via GPIO (QCC744M & QCC748M only)
  • 2.4GHz 802.11 b/g/n/ax Wi-Fi 6 1×1 SISO
  • Bluetooth Low Energy 5.4 with coded PHY
  • 802.15.4 Thread and Zigbee
  • Support for Matter over Wi-Fi and Thread
  • PCB Antenna or an RF connector options
• USB
  • USB Type-C port (J1) for UART/serial console and programming
  • USB Type-C port (J9) for Direct USB/Power (QCC748M only)
• Other I/O
  • Dual-row pin headers for GPIOs (Up to 32x GPIOs on QCC748M; up to 19x on QCC743M)
  • 2x UART, 2x I2C, SPI (Master/Slave), XIP QSPI
  • 1x ISO 11898 CAN Bus (Automotive/Industrial)
  • General Purpose 12/14/16-bit ADC and 12-bit DAC
  • 1x PWM (4 channels), IR Controller (Receiver), Timers (RTC, 2x 32-bit, 1x 16-bit), and JTAG (via GPIO)
• Security
  • Integrated crypto acceleration with public key acceleration, TRNG, and QSPI (XIP) on-the-fly AES decryption
  • PSA Certified Level One featuring secure boot and secure debug
• Misc
  • BOOT button (S1)
  • RESET button (S2)
  • Power LED and VDD33 LED
  • 2x 2-pin header jumpers (J3, J4)
•  Power
  • EVK Input Power  – USB or 5V
  • Module Input Voltage – 2.97-3.63V
  • I/O Voltage – 1.8V/3.3V
  • 1.8V power measurement pad (J5)
  • 3.3V power measurement pad (J6)
• Dimension -TBD
• Operating Temperature – -40 to +85°C

After going through the specifications, it’s clear that it’s designed to directly compete with Espressif modules like the ESP32-S3 or ESP32-C6, featuring a 325 MHz RISC-V core with an FPU and DSP, as well as short-range wireless standards. The specific EVK available right now (the QCC748M) represents the higher end of the stack, with up to 8MB of integrated PSRAM and 16MB of Flash.

Also, from the Block diagram, it’s clear that the only clear difference between the three boards is in the GPIOs and on the USB port.

On the software side, the QCC74x series is designed to operate in a hostless mode, running both the protocol stack and IoT applications without an external MCU. The official software SDK (hosted on CodeLinaro) is built on FreeRTOS and is open-sourced on CodeLinaro, alongside a Microsoft Visual Studio Code (VS Code) extension for development. Due to its Bouffalo Lab roots, the hardware is also already supported by the Zephyr RTOS ecosystem. More information is available on Qualcomm’s quick start guide.

The Qualcomm QCC74xM EVKs are available on DigiKey for $13.12. This includes the QCC748M, QCC744M, and QCC743M development boards. The QCC748M EVK comes in two variants – the EVK-QCC748M-2-01-0-AA with a built-in PCB trace antenna, and the EVK-QCC748M-2-01-0-AB with an RF connector for an external antenna. The QCC744M and QCC743M EVKs are also available in the same two antenna configurations (PCB trace and RF connector variants). The modules themselves for under $3 to $4.75.

Via Hackaday

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Geniatech APC888 Edge AI Box PC is powered by an NXP i.MX 95 Cortex-A55/M7/M33 applications processor, and features an M.2 socket for AI accelerator from Hailo, MemryX, DeepX, or Kinara (now NXP).

The system comes with 4GB LPDDR5 and 32GB eMMC flash by default, features two Gigabit Ethernet ports, optional WiFi, Bluetooth, cellular, and GNSS connectivity, and two USB 3.0 ports. It’s available in commercial and industrial temperature grades.

Geniatech APC888 specifications:

• SoC – NXP i.MX 95
  • CPU
    • Up to 6x Arm Cortex-A55 application cores clocked at 1.8 GHz with 32KB I-cache and D-cache, 64KB L2 cache, and 512KB L3 cache
    • 1x Arm Cortex-M7 real-time core clocked at 800 MHz
    • 1x Arm Cortex-M33 safety core clocked at 333 MHz
  • GPU – Arm Mali-G310 V2 GPU for 2D/3D acceleration with support for OpenGL ES 3.2, OpenCL 3.0
  • VPU
    • 1080p60/4Kp30 H.265 and H.264 encode and decode
    • JPEG Encoder, JPEG Decoder
    • Decoding – 4Kp30/1080p60 HEVC/H.265, VP9, VP8, AVC/H.264 (Baseline / Main / High Profile)
    • Encoding – 4Kp30/1080p60 HEVC/H.265, AVC/H.264
  • AI Accelerator – NXP eIQ Neutron 2 TOPS neural processing unit (NPU) with 750 inf/sec
• System Memory – 4GB LPDDR5 (higher capacity options available)
• Storage – 32GB eMMC flash (64GB or 128GB as options)
• AI – M.2 slot for AI accelerator from Hailo, MemryX, DeepX, or NXP/Kinara (up to 40 TOPS)
• Networking
  • 2x Gigabit Ethernet ports
  • Optional WiFi
  • Optional 4G LTE
• GNSS – Optional GPS module
• USB – 2x USB 3.0 ports, 1x USB Type-C port
• Expansion – “Rich I/O: MIPI-DSI/CSI, PCIe, CAN, UART, SPI, I²C, PWM, GPIO”
• Power Supply – 12V/1.5A via lockable DC jack
• Dimensions – 203 × 174 × 67 mm
• Weight – 1.25 kg
• Temperature Range – Commercial: 0°C – 60°C; industrial: -40°C – 85°C

The expansion part is unclear, but considering that the box comes with two Gigabit Ethernet ports and five RJ45 ports, three of the RJ45 ports could be used for RS232/RS485, CAN Bus, or other I/Os. I can also see two red and black jacks on the front panel that could be for power or some odd-looking audio jacks.

Geniatech provides support for Linux through Yocto 5.0. There’s no other information about the software at this stage. Target applications include multi-camera video analytics, machine vision inspection, robotics perception, and intelligent retail analytics. We’ve covered a good number of NXP i.MX 95 hardware platforms (mostly system-on-modules), but somehow, it’s the first time we come across an AIoT gateway/Edge AI box PC based on the processor, except for the DAB Embedded AquaEdge, which is a bit different, as it specifically targets edge video processing.

The company has not provided availability and price information. More details can be found on the product page and in the press release.

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Rev Adrian Kennard (RevK) has designed several open-source hardware ESP32-S3 WiFi and Bluetooth IoT boards with WAGO connectors for interfacing LED strips, buttons, and other GPIO modules.

Initially developed for the gloves and the helmet of an Iron Man suit, the ESP32-S3 boards can be used for any relevant project that needs more flexibility than soldered modules and more reliability than GPIO headers or even screw terminals, which can be susceptible to vibrations. WAGO push-in connectors make the ESP32-S3 boards especially suitable for prototyping and wearables, where being able to quickly swap modules is beneficial.

The first board designed for gloves is called “Battery powered controller development board” with the following specifications:

• Core module – ESP32-S3-MINI-1-N4-R2
  • SoC – ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity
  • Memory – 2MB PSRAM
  • Storage – 4MB QSPI flash
  • PCB antenna
• USB – 1x USB-C for power and programming
• Expansion
  • 3-pin WAGO connector for LED strip, or other modules (note 3.3V only, can connect GND and DI for 5V for other strips)
  • 2-pin WAGO connector for input button, or other modules
• Power Supply
  • 5V via USB-C port
  • 2-pin LiPo battery connector + charging chip
• Dimensions – 41 x 24 mm

The second board is for the helmet/suit and comes with additional Wago connectors, hence the name “multi-port controller development board”.

Specifications:

• Core module – Same ESP32-S3-MINI-1-N4-R2 as above
• Storage – MicroSD card slot for WAV audio files (in the IronMan project)
• Audio
  • 2x TDK ICS 43434 MEMS microphones (not needed for the IronMan design)
  • 2x MAX98357A speaker drivers
• USB – USB Type-C port for power and programming
•  Expansion – All WAGO push-in connectors
  • 2x GPIO inputs for buttons
  • 4x LED strip controllers or other outputs such as servos, 5V (big capacitor) power from USB, 3.3V data line
  • 2x connectors for 4 Ohm speakers
• Misc – On board status LED (WS2812)
• Power Supply – 5V via USB-C port
• Dimensions – 61 x 42 mm

You’ll find the KiCad hardware design files for both boards and the C firmware using the ESP-IDF framework on CodeBerg. The glove and helmet appear to communicate over Bluetooth LE, notably for button events and to play audio stored on the microSD card. This project is to retrofit an existing Iron Man costume, so there aren’t 3D files to print out yourself. RevK’s blog has a few more details about the project itself. Since it focuses on the electronics and firmware, it’s not a fully reproducible DIY Iron Man suit, but I still found the use of WAGO connectors to be of interest.

There’s also a small 32mm ring with 88 WS2812 style RGB LEDs, arranged as rings of 4,12,16,24,32, and operating at 3.3V for the Glove board, and it’s also open-source hardware with KiCad files released publicly.

This is what the glove looks like with the electronics above.

RevK has recently added the boards on Lectroncz, where you’ll find the Glove board for $20.04, the Helmet board for $40.07, and the LED ring for $13.36. The products are also listed on Tindie, but all are currently out of stock due to the recent drama with the change of owners at Tindie, where the site was inaccessible for a couple of weeks, and payments were not going through to sellers. The website is back up, and the payment issue is getting fixed, but it takes time due to PayPal limits.

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Anthropic has opened its Claude Hardware Interface (Bluetooth API) to developers, enabling an ESP32-S3-based desk companion to connect directly to the Claude desktop app over Bluetooth Low Energy (BLE).

To demonstrate this new feature, the company released an open-source reference project called Claude Desktop Buddy. It currently runs on the M5StickC Plus (an ESP32-based board from M5Stack, about $30 on AliExpress and Amazon) and works as a small interactive hardware companion for Claude. Also, during the recent “Build with Claude” event, the company recommended the ESP32-S3-based M5Stack Cardputer as one of the best hardware options for developers who want to build physical devices that interact with AI agents.

Designed as a physical companion device for Claude Cowork and Claude Code on macOS and Windows, it stays on your desk and provides real-time updates on the AI agent’s activity. It also lets you respond to permission requests directly using its buttons, so you can approve or deny actions without going back to the desktop app, making interaction with the AI faster and more convenient.

The “Buddy” feature started as a hidden Easter egg and April Fools’ joke inside the Claude Code CLI. It was planned for April 1st, 2026, but it got leaked a day early through an accidental npm source map. Developers could summon it with a simple command to display a reactive ASCII character whose energy and mood changed based on their coding activity. The goal was to make long terminal coding sessions more fun and less boring. But over time, as it got popular, Anthropic decided to expand the concept beyond software. By late April 2026, the company open-sourced the Claude Desktop Buddy project and released a local Bluetooth Low Energy (BLE) API for its desktop apps. You’ll find the code and documentation on GitHub.

This hardware interface solves a key problem of frequent user approvals that similar AI systems like StackChan, Loona Deskmate, and Espressif’s EchoEar voice chatbot do not address. Instead of constantly switching back to your computer screen, you can now receive prompts and approve or deny actions directly on the ESP32 device using physical buttons over BLE. The interaction stays local, fast, and private, and no API keys or internet connection are needed. The firmware also keeps the fun “desk pet” personality with animated visual feedback, while the open BLE standard makes it easy for makers to build their own custom versions.

The firmware turns the device into a cute Tamagotchi-style desk pet that reacts to your interactions with Claude. It sleeps when nothing is happening, wakes up as soon as a Claude session starts, and gets visibly impatient when an approval prompt is waiting.

The built-in states include:

• Sleep – Bridge not connected (eyes closed, slow breathing)
• Idle – Connected, nothing urgent (blinking, looking around)
• Busy – Sessions actively running (sweating, working)
• Attention – Approval pending (alert, LED blinks)
• Celebrate – Level up—triggers every 50K tokens processed (confetti, bouncing)
• Dizzy – Triggered by shaking the stick via IMU (spiral eyes, wobbling)
• Heart – Approved a prompt in under 5 seconds (floating hearts)

If you want a custom animated character instead of the built-in ASCII pets, it’s very easy, and Anthropic provides an official example called Bufo, where you can find custom GIFs. You can also create your own custom GIF character using the included prep_character.py tool. Simply prepare 96-pixel-wide GIFs for each of the seven animation states, create a simple manifest.json file, and put everything in one folder. Then just drag the whole folder into the Hardware Buddy window on your computer. The files are streamed over BLE, and your new character appears on the device instantly. Note: the entire character pack folder (manifest + GIFs) must fit under 1.8MB to be successfully streamed and stored in the ESP32’s flash memory.

The project is built for ESP32  and ESP32-S3 boards using the Arduino framework and is compiled and flashed with PlatformIO. It currently depends on the M5StickC Plus library for the display, buttons, and motion sensor. If you want to use it on other ESP32 or ESP32-S3 boards, you will need to fork the code and change the drivers to match your board’s pin layout.

On the M5StickC Plus, the front button (A) approves prompts or opens the menu, while the right button (B) scrolls or denies prompts. The power button toggles the screen or turns the device off. Shaking the device triggers a “dizzy” animation, and placing it face down puts the pet to sleep. To pair it with Claude, enable Developer Mode in the desktop app, open the Hardware Buddy window, and connect over Bluetooth. It will auto-reconnect afterward. Espressif also provides support through its ESP-IDF SDK and ESP Desktop Buddy library for developers who prefer not to use Arduino.

As a side note, we just wrote about the Clawdmeter project, an ESP32-S3-powered Claude Code token usage monitor, which may seem similar at first. However, while both are BLE-based desk companions for Claude, Clawdmeter is a community project for monitoring stats and alerts, and the Claude Desktop Buddy is Anthropic’s official open-source interactive companion with physical button approvals and Tamagotchi-style pet feedback.

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PENOX WristBuds is a 2-in-1 rugged Bluetooth 6.0 smartwatch with integrated TWS earbuds, eliminating the need for a separate charging case. Designed for outdoor enthusiasts and the “zero-clutter mobility” market.

The watch is built around a Bluetrum AB5681G RISC-V smartwatch MCU managing both the smartwatch interface and audio synchronization. The device sports a large 2.1-inch IPS display with a 320×390 resolution and is housed in a CNC-machined zinc alloy body. But what’s interesting about this is its mechanical, spring-loaded “Pop & Snap” design that houses the TWS earbuds inside the watch, and eliminates the need for a separate charging case.

PENOX WristBuds specifications:

• MCU – Bluetooth AB5681G 
  • CPU – 32-bit RISC-V CPU @ up to 140 MHz
  • Memory –  TBC (not mentioned at all in the MCU datasheet)
  • Storage – 128Mbit integrated NOR Flash
  • Display & Graphics – SPI/QSPI display engine with HW acceleration (DMA, rotation, scaling, blending)
  • Audio – Mono Sigma-Delta ADC/DAC, MIC amp, AEC/ANS/PLC/EQ support
  • Wireless – Bluetooth 6.0 (BR/EDR/BLE), +9 dBm TX, -93 dBm RX
  • Other I/O – Up to 27 pins with interrupt/wakeup support; 12× 10-bit ADC channels
  • Power
    • Voltage – 2.8V to 4.5V; Integrated PMU (buck + LDO), Li-ion charger up to 300 mA
    • Consumption – ~0.23 mA sleep, 20 µA deep sleep, ~0.14 mA BLE connected
  • Package – QFN40 (5×5 mm)
  • Temperature – -40°C to +85°C
• Display
  • 2.1-inch IPS full-surface touch display
  • 320×390 resolution
  • 99.5% Adobe RGB color gamut
  • 178° viewing angle
  • Peak Delta E < 2 color accuracy
  • Touchscreen and a tactical rotary crown with haptic feedback for non-linear navigation
• Audio (earbuds)
  • Integrated TWS earbuds with dual-Mic and ENC, claiming 90% ambient noise filtering
  • Smart touch controls for volume and AI assistants
• Connectivity – Bluetooth (supports HD Bluetooth calling with “Wrist-To-Ear Sync” for hands-free operation)
• Misc
  • Continuous 24/7 SpO2 (blood oxygen) and heart rate monitoring
  • Blood pressure monitoring (one-tap)
  • Sleep monitoring with stage analysis (Deep, REM, Light) and a “Recovery Score”.
  • 100+ sports modes
• Power Management
  • Battery capacity – 400mAh lithium battery powers the base of the watch and earbuds
  • Battery life – Up to 7 days of normal use, 50 days of tactical standby
  • Charging – Magnetic cable, 1-2 hours fast charge
• Dimensions – 47mm width, 14mm thickness (Watch Case); Wrist Circumference – 220mm
• Durability – IP67 water and dust resistant
• Enclosure – CNC-machined body (multi-coated zinc alloy) with reinforced aluminum latches

The wireless earbuds are held inside the watch by a magnetic docking system, and the company clarifies that its magnetic system keeps them secure even during intense activity. The company also clarifies that the watch still maintains its IP67 water and dust resistance despite the opening mechanism, but how well the latch holds up over time, especially in muddy or sandy conditions, will be something early users will need to experience themselves.

Previously, we wrote about other unique smartwatches, such as the LightInk, which is an ESP32-based, solar-powered E-ink smartwatch with up to 10 months of battery life. There’s also LILYGO’s T-Watch Ultra, an IP65-rated ESP32-S3 smartwatch with a 2.01-inch AMOLED display, LoRa, and GNSS. Additionally, there are devices such as the Waveshare ESP32-S3 watch and the NASA Artemis Watch 2.0 designed for educational and DIY use.

The PENOX WristBuds kit is currently offered on Kickstarter with a low $1,000 goal, which has already been surpassed. The “Super Early Bird” pledge starts at $99 for a single pack, with a 50% discount off the $199 MSRP. Other options include a double pack for $189, a triple pack for $279, and a family pack (four units) for $359. Additional colored wrist straps are available in 12 colors, including Olive, Cyan, and Coral, and can be added starting at $9. Shipping costs are usually around $8–$15, depending on the region. Delivery is expected in August 2026.

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M5Stack PaperColor, or M5Paper Color, is an ESP32-S3 development kit with a 4-inch E Ink Spectra 6 full-color display with a resolution of 600×400, designed to offer both low power consumption and high visibility under strong lights.

While the color ePaper display is the start of the show, the devkit also features a microSD card slot for storage, a microphone with echo cancellation, a 1W speaker, a temperature & humidity sensor, a few buttons, two RGB LEDs, an IR transmitter, and a Grove connector for expansion. With regards to power, a 1250 mAh battery is included, rechargeable through the device’s USB Type-C port.

M5Paper Color ESP32-S3 Dev Kit specifications:

• SoC – Espressif ESP32-S3R8
  • CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration
  • Memory – 8MB PSRAM
  • Wireless – 2.4 GHz WiFi 4 and Bluetooth 5.0 LE + Mesh connectivity
• Storage
  • 16MB SPI flash
  • MicroSD card socket
• Display – 4-inch E Ink Spectra 6 Full-Color E-Paper Display (ED2208-DOA)
  • Resolution – 600×400
  • Refresh rate – About 15-19 seconds (TBC, assumption from my side based on our experience with other E Ink color displays)
• Audio
  • ES8311 audio codec
  • ES7210 audio ADC
  • 1W @ 8Ω 2520 speaker with AW8737A audio amplifier
  • MEMS microphone with integrated AEC circuit
• USB – 1x USB Type-C port for power and programming
• Sensor – SHT40 Temperature & Humidity Sensor
• Expansion – 4-pin Grove connector
• Misc
  • 3x user buttons, 1x Power button
  • Infrared emitter
  • 2x RGB LEDs
  • RX8130CE Real-Time Clock (RTC)
• Power Supply
  • 5V via USB Type-C port
  • Built-in 1250mAh Battery
  • Consumption
    • Standby: 92.53uA
    • Full Load: 211.97mA
• Dimensions – 103.9 x 70.8 x 8.5 mm
• Weight – 73.3 grams

M5Stack provides instructions to program the PaperColor devkit using the Arduino IDE using the M5Unified, M5GFX, and M5PM1 libraries, along with code samples, and additional technical information on the documentation website. Strangely, there’s no mention of the ESP-IDF framework or the UIFlow2 visual programming IDE compatible with most M5Stack devices. Target applications include smart digital photo frames, data display panels, and electronic signage.

While it’s the first color ePaper devkit from M5Stack, it already has some competition with products such as the Seeed Studio reTerminal E1002, which features a larger 7.3-inch color E Ink display driven by an ESP32-S3, all housed in a plastic enclosure. There are even more color ePaper devkits without enclosure, but that’s the most direct competitor I could think of.

M5Stack sells the PaperColor ESP32-S3 E Ink color devkit for $75 on AliExpress or the M5Stack store. The price looks reasonable, as by comparison, the 4-inch Spectra 6 E Ink display alone sells for $40 on AliExpress (or $50 with driver board), while the reTerminal E1002 with a larger 7.3-inch display goes for around $118 on AliExpress before shipping and taxes.

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Start9’s “RISC-V Router” is powered by a SpacemiT K1 octa-core RISC-V processor paired with 4GB RAM and 16GB eMMC flash, and offers dual GbE networking, as well as an AsiaRF AW7915-NP1 WiFi 6 4T4R module enabling up to 2401 Mbps combined data link.

It’s not exactly a high-end router, but Start9 claims it is the “most open router on the market” thanks to its RISC-V processor, OpenSBI open-source boot stack, and StartWrt operating system, a fork of OpenWrt.

Start9 router specifications:

• SoC – SpacemiT K1
  • CPU – 8-core X60 RISC-V processor with single-core performance equivalent to about 1.3x the performance of an Arm Cortex-A55
  • GPU – Imagination IMG BXE-2-32 with support for OpenCL 3.0, OpenGL ES3.2, Vulkan 1.2
  • VPU – H.265, H.264, VP9, VP8 4K encoding/encoding
  • NPU – 2.0 TOPS AI accelerator
• System Memory – 4GB LPDDR4
• Storage
  • 16GB eMMC flash
  • MicroSD card slot
• Networking
  • 2x Gigabit Ethernet RJ45 ports (1x LAN, 1x WAN)
  • Dual-band 2.4GHz/5GHz WiFi 6 (802.11ax) via AsiaRF AW7915-NP1 4T4R Mini PCIe Module; up to 2,401 Mbps
  • 3x external high-gain antennas
• USB – 2x USB 3.0 ports
• Power Supply
  • 12V/3A via power barrel jack
  • 12V/3A USB PD via the USB-C port on the front panel
• Dimensions – TBD

The hardware appears to have been developed in collaboration with Deep Computing, which very recently introduced another RISC-V hardware: the DC-ROMA RISC-V Mainboard III for Framework Laptop 13, powered by a new SpacemiT K3 SoC.

I understand Start9 focuses on the software stack, divided into two main parts:

• OpenSBI Open Source Supervisor Binary Interface, a firmware layer in the boot process, providing runtime services from the machine mode (M-mode) to the supervisor mode (S-mode) kernel, abstracting platform-specific hardware details and making operating systems more portable across different RISC-V systems.
• StartWRT fork of OpenWrt, with a modern GUI, and the following key features:
  • Security Profiles – Each device on the network receives a Security Profile to determine its permissions
  • Points of Entry – Ethernet, WiFi, and VPN to determine the Security Profile of a device.
  • WiFi (Identity PSK) – Instead of a “primary” network and a “guest” network, StartWRT uses Identity PSK to provide a single network with multiple passwords, each leading to a different Security Profile.
  • Inbound VPNs – Create as many Inbound VPN Servers as you need for personal or shared remote access to the home network.
  • Outbound VPNs – Connect unlimited, network-wide outbound VPN clients for Internet privacy. Optionally chain VPN clients together for extra privacy.
  • WiFi Blackout Schedules – Optionally disable WiFi in hardware on a schedule.
  • One-click dynamic DNS – Use Start9 dynamic DNS for free with a single click. No account necessary.
  • Help Mode – Toggle “Help Mode” to get a detailed explanation of everything in the current view.

They also explain that everything will be open, including the RISC-V instruction set, board schematics, boot stack (OpenSBI + U-Boot), Linux kernel, and the StartWRT OS. The only exception is the WiFi radio firmware (usually not open due to FCC regulations). Currently, two early closed-source boot binaries (DRAM initialization and the first-stage bootloader) are required, but they are working on open-source replacements. I couldn’t find any repository for the StartWRT OS, but there’s an OpenWrt repo on the Start9Lab GitHub account with a “Bianbu” branch, which points to SpacemiT K1 support.

The Start9 device is not quite the first RISC-V router or SBC, as we’ve seen the Banana Pi BPI-F3 (also based on SpacemiT K1), Orange Pi R2S (K1, but no WiFi), and SiFlower SF21H8898-based the Banana Pi BPI-RV2 with optional enclosure and official OpenWrt support.

Start9 is asking for Bitcoin donations to support software development, or a $300+ payment from people who want to get its RISC-V Router by September 2026. Note it’s significantly more than the $95 asked for the similarly specced Banana Pi BPI-F3, to which you need to add a $15 metal enclosure for a complete system, so the majority of the funds go towards software development rather than the hardware itself.

Via HackerNews

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The Yocto Project 6.0, codenamed “Wrynose”, has just been released with Linux 6.18 LTS, about two years after Yocto Project 5.0 “Scarthgap” release with Linux 6.6 LTS. Over 240 contributors submitted over 4000 commits since the previous Yocto 5.3 “Whinlatter” minor release of the popular framework used to create custom embedded Linux distributions.

Yocto Wrynose is a Long Term Support (LTS) release, which will be supported until at least April 2030. The project’s developers especially highlight these 4 years of support, improved SBOM and CVE tracking features, and more secure defaults to ease compliance with the upcoming EU Cyber Resilience Act (CRA).

Yocto Project 6.0 highlights:

• Linux kernel 6.18 LTS
• Toolchain updates: GCC 15.2, glibc 2.43, LLVM 22.1, Go 1.26, and Rust 1.94.
• New bitbake-setup tool to fetch layers and setup build directories.
• Support for BitBake configuration fragments, which can be managed with the new bitbake-config-build command. This enables better reuse of build configurations.
• Easier to build with Clang by setting PREFERRED_TOOLCHAIN_TARGET and related variables.
• Over 300 other recipe upgrades.
• Support for building on Fedora 43, OpenSUSE Leap 16.0, and Ubuntu 26.04.
• The sbom-cve-check tool has been integrated to replace the cve-check bbclass.
• Improvements to SBOM generation, including initial support for PURLs and concluded licenses in SPDX 3.0 output.
• Several improvements to the new bitbake-setup tool, including sharing sstate between builds by default, support for upgrading layers while keeping local changes, clearer terminology & configuration files, and better IDE integration for VSCode.
• Systemd is set as the default init system. This change impacts nodistro builds and any distros not derived from Poky. The default init system for Poky remains sysvinit.
• TLS 1.0 & 1.1 support is disabled by default in OpenSSL.
• Updated host system requirements: 32 GB RAM and 140 GB disk space, mainly due to LLVM compilation requirements. (Yocto has already been resource-hungry; it once took me 48 hours to complete a build on low-end hardware, and the requirements have increased over time)

You’ll find more changes in the release notes, and the developers provide a migration guide for people on one of the Yocto Project 5.x releases. The source code for the latest version can be found on the releases page. The announcement indicates Yocto 6.1 will be scheduled in Q4 2026, and the next LTS release (Yocto 7.0) sometime in 2028.

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Designed by OpenSourceSDRLab, the PortaRF is an open-source software-defined radio (SDR) that integrates HackRF One and the PortaPack H4M into a single device. It’s a standalone device that supports transmitting and receiving radio signals from 1 MHz to 6 GHz.

Traditionally, a portable HackRF setup meant stacking a PortaPack on top of the main board. PortaRF replaces this with a single PCB, making it more compact, easier to use, and with improved signal quality. It also adds a larger display, more flash, and a bigger battery.

PortaRF specifications:

• MCU – NXP LPC432 dual core ARM Cortex M4/M0 (LPC4320FBD144) microcontroller
• CPLD
  • Xilinx XC2C64A CoolRunner-II
  • AGM AG256SL100
• RF ICs
  • MAX2837 – 2.3GHz to 2.7GHz Wireless Broadband RF Transceiver
  • RFFC5072 – Wideband Synthesizer/VCO with Integrated 30MHz to 6 GHz Mixer
• Frequency range – 1 MHz to 6 GHz (Transmit and Receive)
• Storage
  • 2MB SPI Flash (W25Q16DV)  provides more space for the Mayhem firmware
  • MicroSD card slot
• Display – 4.0-inch IPS full-view high-definition resistive touch screen (upgraded from the original 3.2-inch non-IPS matte screen)
• Audio
  • Built-in dual speaker sound holes
  • 3.5 mm headphone jack
• USB – 1x USB Type-C port for
• Expansion
  • Board-to-board connector for add-on boards
  • Optional ESP32-S3-based AI MDK extension board (with extension board variant)
• Misc
  • Light guide column LED status indicators
  • Gamepad-style directional buttons for spectrum scanning and UI navigation
  • Rotary knob for navigation
  • CR2032 battery for the RTC
  • Power, RX, TX, USB, RF, 1.8V LEDs on top
• Power
  • USB Type-C port for charging
  • 3,000mAh lithium battery equipped with overcharge, over-discharge, short circuit, and overcurrent protection
• Dimensions – TBD
• Enclosure – Custom snap-fit shell

One unique add-on for PortaRF is the AI MDK extension board. It’s optional, and if you choose that version, it comes pre-installed on the back of the PCB. It adds basic voice control (beta), letting you do things like wake the device, switch apps, or reboot using voice commands.

The device supports both receive and transmit functions. On the receive side, it can capture and decode signals like ADS-B, AIS, Bluetooth, NRF24L01, analog TV, weather radiosondes, TPMS, and pagers. On the transmit side, it can send signals such as ADS-B, APRS, key fob emulation, Morse code, SSTV, RDS, and OOK.

OpenSourceSDRLab maintains a fork of the Mayhem firmware specifically for the PortaRF, though it is very similar to the main portapack-mayhem branch. You can find the hardware documentation, 3D shell designs, and firmware bin files on the OpenSourceSDRLab GitHub repository, as well as the main Mayhem Firmware repository.

Previously, we have written about various other SDRs like the Phase Loom, the VU GPSDR,  the AntSDR E200, and other products like uSDR, xSDR, and LimeSDR Micro, which usually need a computer to run or come in an M.2 form factor that plugs into a laptop or PC to work as a full SDR.

The PortaRF is available now on AliExpress for about $285, and on the OpenSourceSDRLab store starting at $220 for the standard bundle (device, USB-C cable, and antenna), while the AI MDK version is priced at $255. Orders ship from China.

The post PortaRF single board SDR mixes HackRF One and PortaPack H4M hardware, adds AI voice control appeared first on CNX Software - Embedded Systems News.

Clawdmeter is a DIY ESP32-S3-powered desk dashboard that displays Claude Code token usage on a 2.16-inch AMOLED screen so you know when you’re about to reach the limits in real time.

It’s mostly a firmware project since it relies on off-the-shelf hardware (Waveshare ESP32-S3-Touch-AMOLED-2.16). It leverages the LVGL library for its graphics user interface, the NimBLE stack for Bluetooth LE (BLE) communication, and also functions as a HID keyboard for shortcuts using the buttons from the unit.

We previously covered Waveshare ESP32-S3-Touch-AMOLED-1.8 with a 1.8-inch display, but never the 2.16-inch variant, so let’s have a quick look at the hardware first.

ESP32-S3-Touch-AMOLED-2.16 specifications:

• Wireless MCU – Espressif Systems ESP32-S3R8
  • CPU – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration.
  • Memory – 512KB RAM, 8MB PSRAM
  • ROM – 384KB
  • Connectivity – 2.4 GHz WiFi 4 and Bluetooth 5.0 LE
• Storage
  • 16MB NOR flash
  • MicroSD card slot
• Display
  • 2.16-inch AMOLED display
  • 480 x 480 resolution, 16.7M colors
  • 100,000:1 contrast ratio, 600 cd/m2 brughtness, 178° viewing angle
  • CO5300 QSPI display driver
  • CST9220 capacitive touch I2C controller
• Audio
  • ES8311 low-power mono audio codec
  • ES7210 audio ADC
  • 2x microphones with echo cancellation circuitry
  • Speaker pads
• USB – 1x USB Type-C port for power and programming
• Sensors – QMI8658 6-axis IMU (3-axis accelerometer + 3-axis gyroscope)
• Expansion – 9 pads with GPIOs, UART, VBUS, 3.3V, and GND
• Misc
  • Power, Boot, and User (GPIO18) buttons
  • PCF85063 RTC chip
  • On-board chip antenna and IPEX antenna connector
• Power
  • 5V via USB-C port
  • 2-pin MX1.25 connector for optional 3.7V Lithium battery
  • AXP2101 PMIC for USB-C and battery power management
• Dimensions – 46 x 46 x 22.5 mm

Waveshare provides support for the ESP-IDF framework and the Arduino IDE, and offers various code samples for each, including the ESP-Brookesia firmware. They also published tutorials to use XiaoZhi AI, OpenClaw, and ESP-Claw with the device. You’ll find all the resources to get started on the documentation website.

Back to the ClawdMeter project. It pairs with your laptop over Bluetooth, displays pixel-art Clawd animations that speed up as Claude Code usage rate climbs, shows stats, and the two side buttons send Space and Shift+Tab over BLE HID for Claude Code’s voice mode and mode-toggle shortcuts.

The firmware is written in C using Platform IDE with the help of Claude. The code looks decent and uses constants instead of hard-coded coordinates, as recently seen in some other projects. That means you can probably port it fairly easily to other ESP32 platforms with different display resolutions.

If you’d like to reproduce the exact same setup, you can purchase the ESP32-S3-Touch-AMOLED-2.16 controller for about $30 on AliExpress, Amazon ($40.99), or the Waveshare store with or without a battery (saves about $2). However, as noted by various X users, there are various ways to implement such a Claude Code meter, for instance, a taskbar app or other widget running on the host, or an app to show the usage on a USB information display. More details about the ClawdMeter can also be found on the project’s website.

Via Adafruit

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DEEPX has just launched the DX-AIPlayer, an ultra-compact edge AI mini PC with an Intel Processor “Alder Lake-N” N97 SoC and the company’s DX-M1 M.2 AI accelerator module. The system is designed for real-time vision AI applications in robotics, smart cities, and factory automation.

We’ve seen plenty of Alder Lake-N mini PCs like the Jetway B420UADN1, the Avalue EPC-ASL, the AAEON UP 710S, and various others, but the DX-AIPlayer N97 is different as it integrates the DX-M1 module via an M.2 2280 M-Key (PCIe Gen 3 x4) slot. The NPU delivers up to 25 TOPS of INT8 AI performance while consuming only 1 to 5 Watts of power, and features 4GB of dedicated LPDDR5 memory to handle larger workloads and multi-model execution without bottlenecking the host system’s RAM.

DEEPX DX-AIPlayer N97 specifications:

• SoC – Intel Processor N97 quad-core processor up to 3.6 GHz with 6MB cache, 24 EU Intel UHD graphics @ up to 1.20 GHz; TDP: 12W
• AI Accelerator – DEEPX DX-M1 M.2 2280 M-Key module, 25 TOPS AI, 4GB LPDDR5 memory, 1Gbit QSPI NAND; TDP: 5W Max
• System Memory – 8GB LPDDR5 (up to 16GB supported)
• Storage – 64GB onboard eMMC flash (up to 128GB supported)
• Video Output
  • HDMI 2.0b
  • DisplayPort 1.2
• Audio – Line-out jack, Mic-in jack
• Networking
  • 2x Gigabit Ethernet RJ45 ports
  • Optional Wi-Fi and Bluetooth via M.2 2230 E-key socket
• USB – 3x USB 3.2 Gen 2 Type-A ports, 2x USB 2.0 interfaces (via internal 10-pin header)
• Serial – 2x RS-232/422/485 COM ports
• Security – Onboard TPM 2.0
• Expansion
  • M.2 2280 M-Key (PCIe Gen 3 x2) socket used by the AI accelerator
  • M.2 2230 E-Key (PCIe x1, USB 2.0) socket for WiFi and Bluetooth
• Misc
  • Power button
  • VESA mounting
• Power
  • Supply – 12V DC-in, 5A via threaded locking barrel jack
  • Consumption – 15W to 37W
• Dimensions – 95 x 95 x 55 mm
• Weight – 450 grams (Net) / 600 grams (Gross)
• Temperature Range – Operating: 0°C to 60°C (with 0.5m/s airflow); storage: -20°C to 70°C
• MTBF – 1,224,238 Hours
• Certification – CE/FCC Class A, RoHS Compliant, REACH

On the software side, the company mentions that the DX-AIPlayer supports Windows 10/11, Ubuntu (20.04/22.04/24.04 LTS), and the Yocto Project (v5.1). DEEPX also provides the DXNN (DEEPX Neural Network) SDK. Developers can use the “DX-AllSuite” package, which includes tools for compiling, optimizing, and running models locally or via Docker. The system supports popular frameworks, including PyTorch, TensorFlow, ONNX, Keras, and Ultralytics YOLO, and utilizes C++ and Python APIs via the DX-RT inference engine.

The fully assembled DX-AIPlayer N97 (DX-AIBOX-M1-N97) is now listed for $995.01 on DigiKey for the 8GB RAM version. It is currently out of stock, with an estimated shipping date on July 17, 2026. More information is available on the product page.

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NextPCB today announced the official launch of Rev 0 PCBA, a fully automated, no-touch prototype assembly workflow engineered to eliminate traditional manufacturing obstacles and dramatically accelerate early hardware development.

Rev 0 PCBA introduces a new era of rapid prototyping by automating the entire front‑end workflow – from file upload to assembly – without engineering queries, manual intervention, or unpredictable delays or costs.

“Rev 0 PCBA was born from countless conversations with engineers. The EQ email loop kept coming up as the biggest momentum‑killer, so we built a workflow that removes it entirely. By integrating DFM directly into the process, we’ve created a no‑touch path from screen to factory floor — no delays, no back‑and‑forth, just clean, confident verified builds. And with our new Jiangmen Smart Manufacturing Base, we can deliver those builds with ultra-fast, reliable production.” said Ivy Li, head of international business development at NextPCB.

Rev 0 PCBA leverages NextPCB’s award‑winning DFM/DFA engine to perform instant manufacturability checks, including footprints, spacing, orientation, and basic polarity validation. The service integrates directly with HQ Online’s inventory of over 600,000 in‑stock components, ensuring rapid sourcing and eliminating common prototyping bottlenecks.

Key Capabilities of Rev 0 PCBA

• Automated, no‑touch workflow from upload to assembly
• Instant DFM/DFA checks with automated footprint and spacing validation
• Zero EQ emails and no time‑zone delays
• Predictable, transparent pricing with no hidden costs
• Integrated supply chain with 600k+ components available through HQ Online
• Optimized for fast, rough prototypes where speed and consistency matter most

With Rev 0 PCBA, engineers can now bypass the traditional back‑and‑forth that slows early‑stage builds and give designers full control. The result is a streamlined, highly predictable prototype experience that empowers teams to iterate faster and bring concepts to life with minimal friction.

Rev 0 PCBA is now live

Customers can access the service directly through the NextPCB platform starting today. To celebrate the launch, users can enjoy free assembly on their first Rev 0 PCBA order (up to $500 USD).

Learn more and start your first Rev 0 build.

About NextPCB

Founded in 2011, NextPCB is a global leader in reliable, cost-effective PCB manufacturing and assembly. Serving customers in more than 166 countries and regions, we operate five advanced factories in China capable of HDI, high-layer-count, high-speed, rigid-flex, and rapid prototyping through to full-scale production. By combining automated manufacturing, digitalized workflows, and customer-centric support, we deliver the optimal balance of speed, quality, and affordability for hardware teams worldwide.

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Another day, another SpacemiT K3 device is released, namely Deep Computing DC-ROMA RISC-V Mainboard III for Framework Laptop 13, following the K3 Pico-ITX SBC and K3-CoM260 (and related Jupiter 2 and Banana Pi BPI-SM10) on Monday, and the Firefly AIBOX-K3 on Tuesday.

Initially launched with Intel processors, the Framework Laptop 13 repairable and modular laptop had already got a RISC-V motherboard with the StarFive JH7110-based “DC-ROMA RISC-V Mainboard” in 2024, followed by an ESWIN EIC7702X variant the next year. The third RISC-V mainboard features the octa-core K3 64-bit RISC-V SoC with up to 60 TOPS (Sparse) of AI performance, up to 32GB RAM, and an optional 1TB NVMe SSD.

Specifications of the Framework Laptop 13 with DC-ROMA RISC-V Mainboard III:

• SoC – SpacemiT K3
  • CPU
    • 8x 64-bit RISC-V X100 “big” cores clocked up to 2.4 GHz, RVA23 compliance; 130 KDMIPS performance (similar to RK3588)
    • 8x RISC-V A100 AI Cores with support for up to 1024-bit RVV1.0 parallel computing, optimized for matrix operations.
  • GPU – Imagination Technologies BXM4-64-MC1 GPU with Vulkan 1.3, OpenCL 3.0, and OpenGL ES 1.1/2.0/3.2 support
  • VPU
    • Video decoder – H.265, H.264, VP9 up to 4K @ 120 FPS
    • Video encoder – H.265, H.264 up to 4K @ 60 FPS
  • AI – Up to 60 TOPS (INT4) of AI performance using dedicated TCM and DMA acceleration channels
• System Memory – 16GB or 32GB LPDDR5
• Storage
  • Optional 1TB M.2 SSD via M.2 2280 Key-M (SATA/PCIe) socket
  • MicroSD card slot
• Display – 13.5-inch display with 2256×1504 resolution, 60Hz refresh rate, 400nit brightness, and 100% sRGB color gamut
• Video Output – DisplayPort (via USB-C) up to 4Kp60
• Camera – 1080p60 webcam
• USB
  • USB Type-C port with USB 3.0, DP1.4 Alt. mode, USB PD 3.0 up to 65W
  • USB Type-C port with USB 3.0, USB PD 3.0 up to 65W
  • USB Type-C USB 3.2/USB 2.0 port
• Wireless – Optional WiFi and Bluetooth via Intel AX210 (Wi-Fi 6E and Bluetooth 5.3), AX200, or RZ616 module
• User input – QWERTY keyboard and touchpad
• Misc – Fingerprint reader
• Battery – 55Wh
• Dimensions – 296.63 x 228.98 x 15.85mm
• Weight – 1.3kg

The SpacemiT K3 motherboard is supported by Ubuntu Desktop 26.04 by default.

Three variants of the DC-ROMA RISC-V Mainboard III are available:

• Basic – $699 and up – SpacemiT K3 mainboard with 16GB or 32GB RAM, Framework & Cooler Master Case, Debug expansion card (UART/EC-S/USB-C), WiFi module and antenna
• Standard – $899 and up – SpacemiT K3 mainboard with 16GB or 32GB RAM, 1TB NVMe SSD, USB-C expansion card, HDMI expansion card, WiFi module and antenna
• Pro – $1,499 and up – SpacemiT K3 mainboard with 16GB or 32GB RAM, 1TB NVMe SSD, Framework Laptop 13 2nd Gen, US English keyboard, 2x USB-C expansion cards, and WiFi module

That’s not quite the $300+ asked for  SpacemiT and/or Firefly K3 hardware platforms, but the specifications are a little better, and Deep Computing hardware is usually pricier. Those are pre-orders with the first batch scheduled for the end of June 2026. Note that the Ubuntu instance pre-loaded on the device is for developers, and you may purchase an Ubuntu Pro subscription to get support and security maintenance from Canonical. You’ll find more details and purchase options on the company’s online store.

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Broadcom has recently announced the BCM67142 and BCM67192 WiFi 8 (802.11bn) chips for low-cost residential access points, and the BCM68565 PON Gateway SoC with 10 Gbps Fiber support to enable complete broadband access points.

The announcement follows the launch of the company’s flagship residential (BCM6718) and enterprise (BCM43840/BCM43820) platforms last year, with the new chips aiming to provide value-focused residential Wi-Fi 8 and 10G PON gateway solutions.

Broadcom BCM67142 and BCM67192 WiFi 8 access point chips

BCM67142/BCM67192 specifications:

• Wi-Fi Standards
  • IEEE 802.11bn (Wi-Fi 8) compliant
  • IEEE 802.11be (Wi-Fi 7) compliant
  • IEEE 802.11 a/b/g/n/ac/ax
• Spatial Streams
  • BCM67142 – Dual-Radio: 3×3 (2.4 GHz) + 4×4 (5 GHz). Total 7 streams
  • BCM67192 – Dual-Radio: 4×4 (2.4 GHz) + 4×4 (5 GHz). Total 8 streams
• Spectral Bands – 2.4 GHz, 5 GHz
• Channel Bandwidths – 20/40 MHz (2.4 GHz), 20/40/80/160 MHz (5 GHz)
• Highest Modulation Rate – 4096-QAM (for UHR/Wi-Fi 8 operation)
• Multi-Link Operation (MLO) supported on all bands
• OFDMA and MU-MIMO – Supported in both uplink and downlink directions
• Wireless Security
  • WPA, WPA2, WPA3 (with 192-bit Suite B encryption)
  • AES encryption/decryption
  • TKIP and IEEE 802.1X support
• Host interface – PCIe Gen3 x2
• Temperature Range – 0°C to 70°C (commercial temperature)

Broadcom BCM68565 10G xPON Gateway Device

Broadcom BCM68565 specifications:

• CPU – Multicore Armv8 processor delivering up to 10K DMIPS
• 6th-generation dual-issue runner packet processor (DI-XRDP)
• Offload of both wired and wireless data paths
• Memory – DDR4, LPDDR4, DDR5, and LPDDR5 support
• Storage – Flexible flash memory support (eMMC)
• Networking
  • Integrated 10 Gbps Fiber WAN interface supporting XGSPON, GPON, and Active Ethernet modes
  • 1x 10 Gbps Energy Efficient Ethernet PHY up to 10Gbps
  • 4x Gigabit Energy Efficient Ethernet PHYs
• Multi-lane PCIe Gen3 controllers for WiFi 8 controller connection
• Single USB 3.0 port
• Security – Dedicated security processor (SMC) for secure boot and enhanced encryption support

The SoC supports open source middleware such as RDK and prplWare. It’s designed to be used in combination with the BCM67142 or BCM67192 WiFi 8 chips for Residential Fiber-to-the-Home (FTTH) access points, multi-gigabit fiber CPEs, and 10G PON Wi-Fi Ethernet gateways.

Public documentation is fairly limited for all three chips, as Broadcom only provides product briefs through the respective product pages. and nothing else.

Broadcom says it is currently sampling the BCM68565, BCM67142, and BCM67192 chips to early access customers and partners. A few more details may also be found in the press release.

Via All about circuits

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SONOFF Hydro DUO is a dual-channel Zigbee 3.0 and Bluetooth 5 LE smart water valve with up to 12 customized watering schedules, a flow meter, and alerts for frost risk, leakage, low battery, and water shortages.

Paisit previously reviewed the SONOFF SWV smart water valve, but the company has now launched the Hydro series with various improvements, including a brass inlet instead of a plastic one, weather-based skipping, real-time alerts, flow metering, and dual Zigbee + BLE so it can work even without a Zigbee gateway. The single-channel Hydro models were introduced earlier this year, and now the Hydro DUO offers a variant with two outlets to manage two watering zones.

SONOFF Hydro DUO (SWV-ZF2U/SWV-ZF2E) specifications:

• MCU –   Telink TLSR8258 (TLSR8258F1KAT32) multiprotocol microcontroller @ 48 MHz with BLE 5 and Zigbee 3.0, RF4CE, Thread, 6LoWPAN, HomeKit, ANT, and 2.4GHz proprietary connectivity
• Inlets
  • SWV-ZF2U model – NH (National Hose) pipe thread for North America
  • SWV-ZF2E model – BSP (British Standard Pipe) pipe thread for the UK, Europe, and most other countries and regions
• Working water pressure – 0.06~0.8 MPa
• Misc
  • Built-in flow meter
  • A/B buttons for manual control
• Power Supply
  • 3V via 4x 1.5V AA batteries (2x serial, 2x parallel) typically good for one year
  • 5V/1A via USB Type-C 5V 1A
• Dimensions – 132 x 121 x 67 mm (ABS enclosure, brass inlets)
• IP Rating – IP65
• Temperature Range
  • Air – 0~50°C
  • Water – 5~40°C
• Humidity – 5%~95% RH,non-condensing
• Altitude – Below 2,000 meters

The Hydro DUO is primarily designed to work with the eWelink app, but it’s also compatible with MQTT-compatible frameworks such as Home Assistant, and Smart Home solutions such as Google Home, Amazon Alexa, Samsung SmartThings, and Apple Home. Note that users may need a Matter Bridge such as ZBBridge-U, iHost, Cube OS with SONOFF Zigbee dongle, or a dedicated gateway for the four commercial solutions.

Features include Smart Schedule with duration or capacity, watering history (duration, volume), alarms for low battery, water shortage, leakage, or freezing, as well as manual irrigation, rain delay (no need to water if it rains), seasonal adjustments, and child lock. Check out the documentation for details. One important detail is that not all features are available in “Proximity mode” (BLE): weather-based adjustment and scene linkage only work over Zigbee.

The table below compares the Hydro DUO to the earlier Hydrone ONE (one zone) and Hydrio ONE Lite (one zone, no flow meter). All basically share the same features, but for some reason, SONOFF decided to change the way the four batteries deliver power by using a 2s2P 3V configuration in the DUO, against a 4S 6V configuration in the ONE models.

The SONOFF Hydro DUO dual-channel Zigbee/BLE smart water valve can be pre-ordered for $42.21 on the SONOFF store. Just make sure you select the right model (EU or US) for your region. The coupon code CNXSOFT adds a 10% discount to the price, bringing it down to $37.99 (the coupon doesn’t work on pre-orders). Shipping is scheduled to start by the end of June.

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SiFive has just launched the SiFive Performance P570 Gen 3 out-of-order RISC-V processor core, compliant with the RVA23 ISA profile, and designed for edge AI, high-end consumer, and commercial IoT applications running Android or enterprise-grade OS.

Besides the CPU core, SiFive also provides system IP, such as the RISC-V standard-compliant advanced interrupt architecture (AIA), WorldGuard security, and a second-generation RISC-V standard-compliant IOMMU to build a complete SoC with up to 16x P570 Gen 3 cores.

Performance P570 Gen3 specifications:

• Support for all mandatory RVA23 profile extensions for compatibility with modern operating systems such as Ubuntu 26.04 LTS and Red Hat
  Enterprise
• Adds extensions for enhanced security and performance, including Smepmp, Zvkng, Zvksg, Zicfilp, Zicfiss, Zfbfmin, Zvfbfmin, Zvfbfwma, and Zvdot4a8i
• Third-generation out-of-order core building on earlier P550 Gen1 and P470 Gen2 cores
• 3-wide, 13-stage fully out–of order execution superscalar pipeline
• Single 128-bit vector pipeline with dot product extensions
• Supports multicore coherence with up to 16 cores in a core complex (4x 4-core clusters)

The P570 delivers twice the performance per GHz as the P550 in the Geekbench 6 benchmark, and this increases to 21x higher performance for AI workloads such as object detection, thanks to the 128-bit VLEN vector pipeline. Compared to the P470 Gen2, the numbers for the P570 are 30% and 4.5x higher. Photo filters like background blur also benefit greatly.

In traditional CPU workloads, as measured by SpecInt 2006/2017, the P570 gains 7- 13% in performance compared to P550, and retains the same performance as the P470.

The Performance P570 Gen 3 also offers efficiency improvements with 13% and 5% dynamic power improvements (mW/GHz) compared to P550 and P470, and a 51% and 5% in terms of power leakage (in mW).

On the software, besides support for modern OS like Google Android, Canonical Ubuntu, and Red Hat, we’re also told RISCstar has been working on upstreaming a full-featured implementation of OP-TEE in collaboration with SiFive and the RISC-V Software Ecosystem (RISE). Imagination Technology is also quoted in the press release,  so that probably means P570 SoCs with graphics, like similar RISC-V SoCs, will likely feature the company’s GPU.

More details about the new Performance P570 Gen3 RISC-V core can be found on the SiFive website, and in the video below by Krste Asanovic, SiFive co-Founder and Chief Architect.

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