NeoPixel Mini VU Meter
Make your own Mini VU Meter with NeoPixels and CircuitPython
Four Channel Audio Passive Stereo Mixer
Using audio jacks and potentiometers, you can build a passive mixer to bring together all of your favorite synths.
MIDI Stomping Pads
This MIDI controller uses a Circuit Playground Express and CircuitPython to send MIDI notes. The interface is made with 3D printed squares and copper sticker sheets that press together with springs.
NeoPixel Menorah
3D print parts to make a Menorah that snap fits together. Use QT Py RP2040, NeoPIxels and CircuitPython to make an elegant looking build with LED animations.
RGB Matrix Dreidel Game
Play this digital version of dreidel by dropping chocolate coins through a coin slot at the top of the RGB matrix. The dreidel will "spin" and if you win, the chocolate coins will be dumped out with a servo motor.
Disconnected CO2 Data Logger
This project uses a Feather RP2040, Adalogger FeatherWing and an SCD-40 to log CO2 data to an SD card. This allows you to monitor your air quality on the go without having to worry about an internet or BLE connection.
Adafruit ATtiny Breakouts with seesaw
These breakouts are three in one: an ATtinyxxx development board, a seesaw board, and a STEMMA QT I2C controller or peripheral! This mini development board lets you design with ATtinyxxx, or acts as a little I2C-controlled friend to do all the timing-sensitive things many microcontrollers and microcomputers are not good at.
Mini LED Matrix Audio Visualizer
Use Feather Sense and IS31FL3741 LED Matrix to make an audio visualizer with CircuitPython
Programmable Wireless BLE Gesture Mouse
Use Feather Sense and CircuitPython to make a BLE gesture controlled mouse using accelerometers and proximity sensing
NeoKey Emoji Keyboard
Use the 1x4 NeoKey, QT Py RP2040 and CircuitPython to make a dedicated keyboard of your favorite Emoji's.
Kitty Toe Bean Keypad with Color TFT
Build a custom four toe-bean keypad based off the QT Py RP2040 in the shape of a kitty paw with a color display in the center
FunHouse IoT Fume Extractor and Air Quality Sensor
Make a smart fume extractor that senses the air quality and logs it to Adafruit IO.
CircuitPython on the Arduino Nano RP2040 Connect
The Arduino Nano RP2040 Connect lets you use the RP2040 microcontroller with WiFi connectivity. This guide will show you how to use the board's features with CircuitPython.
Adafruit I2C QT Rotary Encoder
This Stemma QT breakout makes all that frustration go away - solder in any 'standard' PEC11-pinout rotary encoder with or without a push-switch. The onboard microcontroller is programmed with our seesaw firmware and will track all pulses and pins for you and then save the incremental value for querying at any time over I2C. Plug it in with a Stemma QT cable for instant rotary goodness!
Neo Trinkey Zoom Shortcuts
The Neo Trinkey's capacitive touch pads are perfect for having low profile HID shortcuts right next to your laptop. Here, each pad controls either your webcam or mic's mute status in a Zoom call. When you press and hold both pads, you exit the meeting. The NeoPixels let you know if you're muted by showing either red or green lights. When you exit a meeting, the NeoPixels celebrate by showing the classic rainbow cycle animation.