Blog - Curious Inventor https://store.curiousinventor.com/blog/ Mon, 03 Jan 2022 12:37:36 +0000 en-US hourly 1 https://store.curiousinventor.com/wp-content/uploads/2020/03/question_mark_gear_curiousinventor-100x100.png Blog - Curious Inventor https://store.curiousinventor.com/blog/ 32 32 How to use Raspberry Pi to track motion and turn skeleton head as people walk by https://store.curiousinventor.com/blog/how-to-quick-tips/how-to-use-raspberry-pi-to-track-motion-and-turn-skeleton-head-as-people-walk-by/ https://store.curiousinventor.com/blog/how-to-quick-tips/how-to-use-raspberry-pi-to-track-motion-and-turn-skeleton-head-as-people-walk-by/#respond Mon, 03 Jan 2022 12:36:23 +0000 https://store.curiousinventor.com/?p=2358 This project utilizes a Raspberry Pi Zero, servo, camera, and OpenCV python library. Parts: Pi Zero W (with wireless): https://www.adafruit.com/product/3708 PWM Servo bonnet: https://www.adafruit.com/product/3416 Servo: https://www.adafruit.com/product/2307 USB to Barrel Jack cable: https://www.adafruit.com/product/2697 Pi NoIR Camera (camera without an IR filter that’s better at night): https://www.adafruit.com/product/3100 camera cable that fits Pi Zero: https://www.adafruit.com/product/3157 USB Hub: https://www.adafruit.com/product/2991 […]

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]]> https://store.curiousinventor.com/blog/how-to-quick-tips/how-to-use-raspberry-pi-to-track-motion-and-turn-skeleton-head-as-people-walk-by/feed/ 0 How to DIM LED with Arduino & Triac https://store.curiousinventor.com/blog/how-to-dim-led-with-arduino-triac-2/ https://store.curiousinventor.com/blog/how-to-dim-led-with-arduino-triac-2/#respond Sun, 28 Apr 2019 14:14:55 +0000 https://store.curiousinventor.com/blog/?p=383 Zero-Cross & Triac Optically Isolated Switch “Tail”: https://www.powerswitchtail.com/pssr-zc-tail arduino: https://amzn.to/2P12JaL RealTimeClock (RTC): https://amzn.to/2NTKsjg 15W Dimmable LED https://amzn.to/2OqlHL0 CR2032 battery for RTC: https://amzn.to/2Ov8elf sourcecode: https://github.com/curiousinventor/AC-triac-arduino-led-dimmer

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]]> https://store.curiousinventor.com/blog/how-to-dim-led-with-arduino-triac-2/feed/ 0 Course on Bitcoin, Blockchain, Decentralization https://store.curiousinventor.com/blog/course-on-bitcoin-blockchain-decentralization/ https://store.curiousinventor.com/blog/course-on-bitcoin-blockchain-decentralization/#respond Sat, 18 Jun 2016 20:20:34 +0000 https://store.curiousinventor.com/blog/?p=376 Our new course on Bitcoin, Blockchain and Decentralized technology gives a crash course on Bitcoin and many other blockchain projects, like Ethereum, MakerDao, IPFS, SlockIt, the DAO, Zerocash, and more. There are demos on how to acquire, store and use Bitcoin, including web, hardware and paper wallets. Some of the latest topics in Bitcoin are […]

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]]> https://store.curiousinventor.com/blog/course-on-bitcoin-blockchain-decentralization/feed/ 0 SMS to Cheap Scrolling LED using Arduino USB Host Shield and Android App https://store.curiousinventor.com/blog/sms-to-scrolling-led/ https://store.curiousinventor.com/blog/sms-to-scrolling-led/#respond Sun, 06 Sep 2015 12:01:56 +0000 http://wickedwebdesignri.com/Development/CuriousInventor/sms-to-scrolling-led/ This project shows how to send SMS text messages to a cheap scrolling LED display via an Android app and arduino with USB host shield. The project was originally inspired by a friend wanting to make a “sexting themed” costume, with a scrolling LED display of live texts sent from people at the party.  We […]

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]]> https://store.curiousinventor.com/blog/sms-to-scrolling-led/feed/ 0 The Essence of How Bitcoin Works https://store.curiousinventor.com/blog/essence_of_how_bitcoin_works/ https://store.curiousinventor.com/blog/essence_of_how_bitcoin_works/#respond Sat, 06 Sep 2014 06:57:14 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=363 A brief intro to the main ideas behind How Bitcoin Works, including how money is transferred, who keeps track of it, and how the whole thing is secured.

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]]> https://store.curiousinventor.com/blog/essence_of_how_bitcoin_works/feed/ 0 SMT Stencil Review, including BGA Reballing https://store.curiousinventor.com/blog/smt-stencil-review-bga-reballing/ https://store.curiousinventor.com/blog/smt-stencil-review-bga-reballing/#respond Sat, 31 May 2014 02:00:03 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=361 A review of SMT stencils from BEST, Inc. 10% off coupon: ‘Curious’

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]]> https://store.curiousinventor.com/blog/smt-stencil-review-bga-reballing/feed/ 0 How Bitcoin Works in 5 Minutes https://store.curiousinventor.com/blog/how_bitcoin_works_in_5_minutes/ https://store.curiousinventor.com/blog/how_bitcoin_works_in_5_minutes/#respond Mon, 14 Apr 2014 02:50:00 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=359 A short introduction to how Bitcoin Works. Written version:https://www.imponderablethings.com/2014/04/how-bitcoin-works-in-5-minutes.html

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]]> https://store.curiousinventor.com/blog/how_bitcoin_works_in_5_minutes/feed/ 0 RPi Spectrum Analyzer Display with LED Strip https://store.curiousinventor.com/blog/rpi_spectrum_analyzer_led_strip/ https://store.curiousinventor.com/blog/rpi_spectrum_analyzer_led_strip/#respond Tue, 07 Jan 2014 04:02:13 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=357 A python-based real-time spectrum analyzer. Plays MP3s and does FFTs in real time using code from the LightShow Pi project and Numpy. Full code and instructions at instructables.

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]]> https://store.curiousinventor.com/blog/rpi_spectrum_analyzer_led_strip/feed/ 0 Augmented Reality Circuit Building Guide https://store.curiousinventor.com/blog/augmented_reality_circuit_building_guide/ https://store.curiousinventor.com/blog/augmented_reality_circuit_building_guide/#respond Wed, 06 Nov 2013 08:44:01 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=355 An iPad app that provides augmented reality steps for building a circuit on a bread board. Graphics are overlayed on the actual breadboard to show you exactly where to put parts, and provide extra information, like values, tolerances, and voltages.

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]]> https://store.curiousinventor.com/blog/augmented_reality_circuit_building_guide/feed/ 0 How Bitcoin Works Under the Hood https://store.curiousinventor.com/blog/how_bitcoin_works_under_the_hood/ https://store.curiousinventor.com/blog/how_bitcoin_works_under_the_hood/#respond Mon, 15 Jul 2013 06:07:47 +0000 http://ec2-54-144-196-90.compute-1.amazonaws.com/blog/?p=353 A somewhat technical, but concise explanation of how Bitcoin works.

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