Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your…

Arduino core for the ESP32

OpenSCAD - The Programmers Solid 3D CAD Modeller

A cross-platform file change monitor with multiple backends: Apple macOS File System Events, *BSD kqueue, Solaris/Illumos File Events Notification, Linux inotify, Microsoft Windows and a stat()-bas…

Fritzing desktop application

Open Source toolpath generator for 3D printers

Sampler, Sequencer, Multi-engine synth and effects - in a box! [WIP]

Arduino library for DHT11, DHT22, etc Temperature & Humidity Sensors

MIDI for Arduino

Firmata firmware for Arduino

Basilisk II and SheepShaver Macintosh emulators

🎹🎶 A baremetal kernel that turns your Raspberry Pi 3 or later into a Roland MT-32 emulator and SoundFont synthesizer based on Circle, Munt, and FluidSynth.

Low Power Library for Arduino

Dexed FM synthesizer similar to 8x DX7 (TX816/TX802) running on a bare metal Raspberry Pi (without a Linux kernel or operating system)

Teensy Audio Library

EtherCard is an IPv4 driver for the ENC28J60 chip, compatible with Arduino IDE

omxplayer

RFM69 library for RFM69W, RFM69HW, RFM69CW, RFM69HCW (semtech SX1231, SX1231H)

A Pico-8 player/emulator for console homebrew

omxplayer

Arduino library for TM1637 (LED Driver)

Arduino library to debounce button switches, detect presses, releases, and long presses

Arduino library to monitor battery consumption

Arduino-based MIDI to CV converter

OP-1 style portable groovebox based around Teensy 4.1

Code to emulate a gameboy printer via the gameboy link cable

QT-based gcode user interface for grbl on arduino

Eurorack Oscillators for Korg prologue, minilogue xd and Nu:tekt NTS-1

An Arduino library to use Midi over BLE (Bluetooth Low Energy), on ESP32 boards

ESP32 based simple synthesizer project