Arcade Fightstick Use a Pico RP2040 or KB2040 Keeboar to build your own low latency arcade joystick controller. GP2040-CE firmware plus an OLED and NeoPixels take it to the next level.

Arcade Fightstick

MIDI Breath Controller Deep breathing isn't only for mindfulness, it's for sending MIDI CC messages too. You can build a MIDI breath controller with a BMP585 air pressure sensor. This particular sensor has a port that you can attach a tube to for targeted pressure readings. In this scenario, the sensor is attached to a QT Py RP2040 running CircuitPython code that maps that pressure reading range to MIDI CC message values.

MIDI Breath Controller

Melting Picture Frame for PyPortal IoT images Turn your PyPortal into an IoT-connected art gallery that cycles through art, space, cats and dogs! Pull from image feeds or images from an SD card. Skip images with a tilt or shake. Tap the screen to change feeds. Customize your feed, animation and even the audio chirp! 3D print the melted diagonal frame to mount the PyPortal and accelerometer.

Melting Picture Frame for PyPortal IoT images

Moonshine Voice Control on Raspberry Pi Moonshine voice is designed to transcribe real-time audio speech into text. This project uses a USB microphone connected to a Raspberry Pi to accept voice commands to control a strip of NeoPixels.

Moonshine Voice Control on Raspberry Pi

LED Shoji Lamp 3D print a lamp for the Circuit Playground express with swappable multi-color panels inspired by traditional Japanese Shoji lanterns. IR remote controls brightness and colors.

LED Shoji Lamp

Professor Bubbleton’s Breathing Head in a Jar Professor Bubbleton’s Breathing Head responds to the curious with a faint, unsettling breath when the vessel is disturbed. Neither living nor entirely still, it blurs the line between scientific marvel and sideshow horror.

Professor Bubbleton’s Breathing Head in a Jar

Stained Glass Lamp This fun project creates a lamp that can be used anywhere. It uses tap detect to cycle through color modes and features a light meter mode, audio reaction and colors. Modes can also be selected with the Adafruit Bluefruit Connect app in the Control Pad and a color picker to adjust the brightness.

Stained Glass Lamp

Adafruit SGP41 Multi-Pixel Gas Sensor Breakout The Adafruit SGP41 Multi-Pixel Gas Sensor is a fully integrated MOX gas sensor. It has I2C interfacing so you don't have to manage the heater and analog reading of a MOX sensor. It combines multiple metal-oxide sensing and heating elements on one chip to provide more detailed air quality signals - and unlike the SGP40, the SGP41 adds a dedicated NOx sensing pixel so you can measure both VOCs and nitrogen oxides!

Adafruit SGP41 Multi-Pixel Gas Sensor Breakout

Tiny Wiki for CircuitPython A CircuitPython port of the micropython Tiny Wiki project by Kevin McAleer. Runs on the Fruit Jam by default using its built-in WIFI to host the HTTPServer and SD card to store the Wiki pages as markdown files.

Tiny Wiki for CircuitPython

Hacking Yoto Music Players See how to take your Yoto Mini apart and load and run CircuitPython firmware with access to nearly all of the peripherals onboard. As of writing, the speaker init sequence hasn't been fully cracked but there is headphone output and every other peripheral is accessible, including the eMMC flash for chonky storage. There's also a page detailing the reverse engineering process, from multimeters to looking at the shipped firmware with Ghidra.

Hacking Yoto Music Players

LED Matrix Necklace Pendant Make a pendant from an 8x8 LED matrix and a Feather ESP32 V2. This necklace has a compact design and onboard battery charging, and runs WLED -- no coding required.

LED Matrix Necklace Pendant

OpenClaw on Raspberry Pi OpenClaw is a project that gives an LLM agent control over a computer. The agent can install software, write and run programs, integrate with external services, and much more. Running OpenClaw on a Pi opens up world of possibilities with many types hardware that can be connected to the device and given to OpenClaw to control and interact with.

OpenClaw on Raspberry Pi

ePaper Camera MEMENTO and MagTag are back, and together for the very first time! Use MEMENTO to snap pics that are automatically uploaded to Adafruit IO, then automatically downloaded by the MagTag for display.

ePaper Camera

Bass MIDI Stomp Box Bass MIDI pedals are a really popular DIY music project. They're used to control synths or other MIDI equipment with your feet while you're playing another instrument. Perfect for getting moody drones going during your solo shoegaze set. The build is housed in a pedal enclosure and uses a Raspberry Pi Pico 2, running CircuitPython, plugged into a Terminal PiCowbell for easy wiring with the foot switches.

Bass MIDI Stomp Box

Color Sensing Music Player Use a Feather PropMaker RP2040 and Adalogger FeatherWing to make a color sensing music player using CircuitPython. An AS7341 color sensor detects a color and plays music depending on the color.

Color Sensing Music Player

NeoPixel Light Slate Add NeoPixel LEDs to a piece of acrylic plastic and make your drawings or signs animate and glow. Wipe it clean and reuse it as many times as you like. No soldering or coding required!

NeoPixel Light Slate

Haiku Viewer for MagTag Load up your favorite haiku poems and show them on the MagTag eInk display. Store them in a local file or as a remotely manageable feed on Adafruit IO. Press the left and right buttons to cycle through the available haikus, and the down button chooses a random one.

Haiku Viewer for MagTag

Wireless Control Button for WLED Projects Set up a big red button that controls your lights. Turn them on or off, change colors or effects, or turn on Party Mode with one click. Make your project interactive and fun for the whole family.

Wireless Control Button for WLED Projects

MagTag IoT Menorah Every year for Hanukkah, you light a candle every night for 8 days. Whether you sometimes lose track of which night it is or you can't light candles in your space, this project helps you out by making the menorah digital and keeping time with the internet. Every day, the MagTag fetches the date and time, compares it to the start date of Hanukkah and updates the menorah graphic accordingly.

MagTag IoT Menorah

Apple IIe Fruit Jam Enclosure Use your Fruit Jam in style by 3D printing an Apple IIe inspired enclosure.

Apple IIe Fruit Jam Enclosure

Sparkle Motion Christmas Tree Lights Use WLED on Sparkle Motion for easy, plug-and-play, no-solder Christmas tree lighting that you can control from your mobile device or IR remote control.

Sparkle Motion Christmas Tree Lights

Holiday Card Maker on Fruit Jam Make a snowflake by clicking points with the mouse to cut out shapes, or use a custom SVG or PNG file for the front of your card. Input text for the front and inside messages. Generate the card when everything is set and then find it inside of CPSAVES on the PC and open it in a browser to print. Then fold the paper into quarters and your card is ready!

Holiday Card Maker on Fruit Jam

Bajoran AirPods Protect your AirPods with a pair of Star Trek Deep Space Nine Bajoran inspired holders for ears!

Bajoran AirPods

Planetary Gear Dreidels 'Tis the season for holiday displays, but Hanukkah doesn't always get the same kitschy, fun decor that other holidays do. In this project, you'll build a planetary gear that rotates three dreidels using an STSPIN220 silent stepper motor driver and a KB2040 running CircuitPython. It's giving Stu Pickles chaotic menorah energy from A Rugrats Chanukah Special.

Planetary Gear Dreidels

AdaBox 022 It's AdaBox 022!

AdaBox 022

eInk Literature Quotes Clock for MagTag There are unique quotes for nearly every minute of the day. Many of the minutes have several, and choose from them at random. The quotes are displayed on the MagTags eInk display along with the book title and author.

eInk Literature Quotes Clock for MagTag

Laser-Cut Layered LED Art Panel (Wood + Acrylic) with WLED Create a laser-cut layered LED art panel with WLED using stacked wooden layers and edge-lit acrylic to produce clean, multi-depth lighting effects. This technique lets you run independent WLED segments on separate acrylic layers, turning any laser-cut design into a customizable, glowing light sculpture.

Laser-Cut Layered LED Art Panel (Wood + Acrylic) with WLED

Local Models for Translation, Speech, & Wardrobe on Pi 5 This project uses locally running "edge" AI models on the Raspberry Pi 5 to translate text, suggest appropriate attire based on the weather, and then speak the weather and wardrobe suggestion in one of 6 different languages. SmolLM3 is used for translation and wardrobe suggestion, and Piper TTS is used for multi-lingual text to speech.

Local Models for Translation, Speech, & Wardrobe on Pi 5

4x12 Ortho Mechanical Keyboard Make a cute 4x12 48-key keyboard using NeoKey ortho linear snap-part PCBs and the KB2040 microcontroller.

4x12 Ortho Mechanical Keyboard

Mushroom Lights with NeoPixels and WLED This is a fun beginner project that's so much fun to do with kids. Create sculpted mushroom lights with addressable, twisted wire "fairy" pixels, hot glue, and a Mini Sparkle Motion board and create fun animations on your smartphone.

Mushroom Lights with NeoPixels and WLED