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This links to the guide PiPyPirate Radio. </video> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/810/medium640thumb/out.gif?1684341349" aria-hidden="true" alt="A TFT display with a radio station graphic and 108.0 FM, on a raspberry pi" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/pipypirate-radio"> PiPyPirate Radio </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Make a low-power FM transmission radio station with a Raspberry Pi or other single-board-linux computer </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/dude-where-s-my-com-port"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/745/medium640/thumb.jpg?1675786550" aria-hidden="true" alt="A photoshopped image from the movie Dude Where's My Car" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/dude-where-s-my-com-port"> Dude, Where's My COM Port? </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Dealing with lost COM ports on native USB dev boards. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/raspberry-pi-i2c-clock-stretching-fixes"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/687/medium640/bitmap.png?1666726117" aria-hidden="true" alt="A Raspberry Pi with a sad face emoji and an I2C waveform superimposed" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/raspberry-pi-i2c-clock-stretching-fixes"> Raspberry Pi I2C Clock Stretching Fixes </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Various approaches for dealing with I2C clock stretching on a Raspberry Pi. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/circuitpython-with-esp32-quick-start"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/646/medium640/Screenshot_from_2022-08-17_10-54-08.png?1660758938" aria-hidden="true" alt="A screenshot of the circuitpython web workflow editor" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/circuitpython-with-esp32-quick-start"> CircuitPython on ESP32 Quick Start </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Install and Code CircuitPython on ESP32 boards, then connect to CircuitPython from a web browser to use the REPL and file system. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/super-simple-sunrise-lamp"> <video class="video-preview lazy" preload="auto" muted="muted" loop="loop" playsinline poster="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/626/medium640thumb/out.gif?1657559164" data-error="/assets/missing%2Fmissing.png" 'aria-hidden'=true> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/626/medium640mp4/out.mp4?1657559164"></data-src> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/626/medium640webm/out.webm?1657559164" type="video/webm; codecs=vp8,vorbis"></data-src> Your browser does not support the video tag. This links to the guide Super Simple Sunrise Lamp. </video> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/626/medium640thumb/out.gif?1657559164" aria-hidden="true" alt="A flat table lamp that is slowly turning on" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/super-simple-sunrise-lamp"> Super Simple Sunrise Lamp </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Know when wake up time is by sunrise lamp color. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/working-with-multiple-i2c-devices"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/581/medium640/thumb.jpg?1651595954" aria-hidden="true" alt="A breadboard microcontroller board wired up to an I2C expander that connects four identical environmental sensors" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/working-with-multiple-i2c-devices"> Working with Multiple Same Address I2C Devices </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> A more indepth look at dealing with I2C address conflicts. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/working-with-i2c-devices"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/529/medium640/thumb3.png?1646688852" aria-hidden="true" alt="Working with I2C Devices" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/working-with-i2c-devices"> Working with I2C Devices </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> A cornucopia of I2C related information. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/sketch-drawing-toy"> <video class="video-preview lazy" preload="auto" muted="muted" loop="loop" playsinline poster="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/537/medium640thumb/guide-loop.gif?1646158838" data-error="/assets/missing%2Fmissing.png" 'aria-hidden'=true> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/537/medium640mp4/guide-loop.mp4?1646158838"></data-src> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/537/medium640webm/guide-loop.webm?1646158838" type="video/webm; codecs=vp8,vorbis"></data-src> Your browser does not support the video tag. This links to the guide Sketch Drawing Toy with CircuitPython. </video> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/537/medium640thumb/guide-loop.gif?1646158838" aria-hidden="true" alt="Sketch Drawing Toy with CircuitPython" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/sketch-drawing-toy"> Sketch Drawing Toy with CircuitPython </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/pixil3d"> <span class="name">Ruiz Brothers</span> </a> </div> <div class="description"> Build your own sketch drawing toy with DIY electronics and 3D printed parts! </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/neo-trinkey-auto-screen-locker"> <video class="video-preview lazy" preload="auto" muted="muted" loop="loop" playsinline poster="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/508/medium640thumb/thumb.gif?1642447734" data-error="/assets/missing%2Fmissing.png" 'aria-hidden'=true> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/508/medium640mp4/thumb.mp4?1642447734"></data-src> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/508/medium640webm/thumb.webm?1642447734" type="video/webm; codecs=vp8,vorbis"></data-src> Your browser does not support the video tag. This links to the guide Neo Trinkey Auto Screen Locker. </video> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/508/medium640thumb/thumb.gif?1642447734" aria-hidden="true" alt="Neo Trinkey Auto Screen Locker" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/neo-trinkey-auto-screen-locker"> Neo Trinkey Auto Screen Locker </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Auto lock your screen if your lappy gets snagged. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/diy-trinkey-no-solder-air-quality-monitor"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/493/medium640/thumb.jpg?1640116912" aria-hidden="true" alt="DIY Trinkey No-Soldering USB Air Quality Monitor" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/diy-trinkey-no-solder-air-quality-monitor"> DIY Trinkey No-Soldering USB Air Quality Monitor </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Want to measure various air quality parameters, like humidity, temperature, CO2, etc.? Want to measure these directly into your computer? Want to do all this without soldering? No problem. In this guide we'll show how this can done using the Adafruit Trinkey QT2040. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/ble-sniffer-with-nrf52840"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/492/medium640/sniffer-nrf52840.png?1639629114" aria-hidden="true" alt="BLE Sniffer with nRF52840" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/ble-sniffer-with-nrf52840"> BLE Sniffer with nRF52840 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/hathach"> <span class="name">Thach Ha</span> </a> </div> <div class="description"> The Bluefruit LE Sniffer allows you to capture traffic between two Bluetooth Low Energy devices in a passive manner (meaning it isn't involved directly in the connection itself). This mini guide will show you how to do that with an Adafruit nRF52840 board. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/trinkey-qt2040-true-random-number-generator"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/486/medium640/thumb.jpg?1638917225" aria-hidden="true" alt="Trinkey True Random Number Generator" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/trinkey-qt2040-true-random-number-generator"> Trinkey True Random Number Generator </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Random numbers have a lot of uses in computer programming. These can be for fun things like picking a random song, drawing to a random location, etc. On the more serious side, they are useful in the realm of cryptography. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/accessing-and-using-adafruit-pcb-design-files"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/424/medium640/thumb.jpg?1632150692" aria-hidden="true" alt="Accessing and Using Adafruit PCB Design Files" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/accessing-and-using-adafruit-pcb-design-files"> Accessing and Using Adafruit PCB Design Files </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> Learn how to download and use Adafruit PCB design files with Eagle CAD. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/scanning-i2c-addresses"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/422/medium640/Screenshot_from_2021-09-16_11-42-36.png?1631817799" aria-hidden="true" alt="How to Scan and Detect I2C Addresses" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/scanning-i2c-addresses"> How to Scan and Detect I2C Addresses </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/caternuson"> <span class="name">Carter Nelson</span> </a> </div> <div class="description"> I2C is a common circuit interconnection format. 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