Circuit Lake

PIC Wireless Servo Controller

admin — Wed, 11 Nov 2009 02:51:30 +0000

The wireless servo controller project build to control of two servo motors wirelessly. It can be use as wireless camera tracking or other robotics project. Both receiver and transmitter use a 24G 2.4GHz wireless modules. The receiver use PIC18LF2550 microcontroller with firmware written using CCS PIC C compile. This project can control any standard servos with [...]

Pinguino : PIC based Arduino

admin — Tue, 10 Nov 2009 04:34:23 +0000

If Arduino board based on AVR microcontroller then Pinguino is Arduino board based on PIC Microcontroller. Pinguino is Arduino for PIC user. Its hardware is based on a PIC 18F2550. This chip has an integrated native USB module and an UART for serial link. Pinguino is Open hardware and Open software. The IDE ( integrated [...]

Simple AVR SD Audio Player

admin — Wed, 04 Nov 2009 02:26:02 +0000

This audio player project is very simple and only need few wires to be soldered. The main part is 8-pin microcontroller and SD memory card. The chip use ATtiny05 series (25/45/85) 8-pin AVR microcontroller. The AVR has two fast PWM outputs in 250kHz carrier frequency that can output wide frequency range audio signals. As storage, [...]

AVR Electronic lock

admin — Mon, 02 Nov 2009 19:12:24 +0000

CodeLock is AVR based electronic combination lock. This security system use microcontroller AT90S2313 or ATtiny2313 as main chip. If the code is entered in the correct sequence, then after 1 second the relay and the electric striker (in the door) switch on for 1 second and then switch off again. You can modify the code [...]

Electronic Mini Badge

admin — Sat, 31 Oct 2009 18:02:02 +0000

The Electronic Mini-Badge project is a PIC24FJ64GA004-based electronic badge that displays color slideshows. Many electronic badges display scrolling text using a matrix of discrete LEDs. This low-power system features a graphical OLED display and can be easily upgraded to handle animation, video, or RF communication. The PIC24FJ64GA004 microcontroller is used as a compromise between the speed [...]

PIC24FJ64 Multifunctional Alarm Clock

admin — Thu, 29 Oct 2009 02:45:20 +0000

I’m sure that everyone has alarm clock in their house from the simple to the elaborate, to help them get a start on the day. But you need to be there to set it. DJ Delorie has design Multifunctional Alarm Clock that has three primary features: automatic time setting on power-up, remote management and streaming [...]

Variable Speed Induction Motor Controller

admin — Sat, 24 Oct 2009 22:23:27 +0000

This project is solution for people who need one for a single-phase motor that operates in the 2-HP range. This Induction Motor Controller features active power factor correction (PFC) and inrush current limiting. It designed for use with a capacitor-start/capacitor-run motor. The motor drive hardware is built using a dsPIC30F2020 DSC and communicates via an [...]

Portable RLC Meter

admin — Fri, 23 Oct 2009 03:15:09 +0000

This RLC meter design uses direct digital synthesis (DDS) techniques to generate the test waveform and digital signal processing (DSP) methods to condition the resulting voltage and current signals. Three test frequencies are implemented (100Hz, 1kHz, 10kHz) and both parallel and series circuit models are evaluated, automatic selection of both frequency and circuit model is [...]

FM Wireless Microphone

admin — Sun, 11 Oct 2009 23:50:36 +0000

This FM Wireless Microphone project has good frequency stability and has range over 1 Km (under good conditions). This project features RF amplifier buffer (10dB gain), an AF preamplifier to boost the modulation and good microphone sensitivity. You can use it for guitars and remote control system. This project quite simple to build. The two BC547 [...]

USB Wireless Temperature And Humidity Sensor

admin — Fri, 09 Oct 2009 20:42:40 +0000

This data logger project based on firmware-only USB implementation. There are two part in this project, transmitter and receiver. The transmitter consist of ATTiny45 microcontroller, a SHT11 sensor (digital temperature and humidity sensor) and a hoperf RFM12 868 MHz transceiver module. The transmitter powered by 2 AA cells. While the receiver uses ATMega8 µC and [...]