MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems

Open-source keyboard firmware for Atmel AVR and Arm USB families

Klipper is a 3d-printer firmware

Open Source Flight Controller Firmware

Open Source Soldering Iron firmware

A vector search SQLite extension that runs anywhere!

An open source cross-platform USB stack for embedded system

FuzixOS: Because Small Is Beautiful

USB host/device implementation using PIO of raspberry pi pico (RP2040/RP2350).

Code for the "Graphics Gems" book series

Firmware for the Original Prusa MINI, Original Prusa MK4, Original Prusa XL and Prusa CORE One 3D printers by Prusa Research.

Mini Drone/Quadcopter Firmware for ESP32 and ESP32-S Series SoCs.

Do-It-All Mechanical Macropad

Information and firmware related to the rp2040-zero based chip for the nx

STM32 Based soldering station for JBC cartridges, 9-24 VDC and USB-PD power

Cross-platform M8 tracker headless client

MIDI sequencer using Raspberry Pi Pico in Arduino & CircuitPython

Transform your Raspberry Pi Pico 2 W into a USB to Bluetooth Audio Adapter. Support LDAC and AAC

ML_SynthTools

A ZMK module to add battery/BT/layer indicators using an RGB LED (like in Xiao BLEs)

Simple library for using ssd1306 displays with the Raspberry Pi Pico and the pico-sdk.

M8 Tracker Headless Client for Raspberry Pi 4 Model B.

Unofficial Facebook Messenger app for elementary OS

Unofficial Firmware for the Prusa Mini

Some basic sound synthesis on the Pico

StampFly flight control code

asac fc is an rp2040 based flight controller made for FPV drone flying

A Pico W Bluetooth LE MIDI adapter for any class compliant USB MIDI device