ArduPlane, ArduCopter, ArduRover, ArduSub source
The keyboard and mouse sharing tool
A shield for the Arduino Mega that can back up video game cartridges
An Arduino NeoPixel support library
OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi/Linux
WS2812 FX library for Arduino and ESP8266
Teensy/Arduino flight controller & stabilization for small-scale VTOL
Disk Inspection and Monitoring
Hewlett-Packard's Linux imaging and printing software
SnapKey: Open Source Alternative to Snap Tap & SOCD
ESP8266 Weather Station library supporting OpenWeatherMap
Hard disk drive and SSD health inspection tool
Open Source Solid Modeling CAD
An USB programmer for PIC, dsPIC, AVR, serial memories
LEDSpicer a LED Animator and Controller for Linux
Install and update drivers on Windows PCs.
ESP8266 core for Arduino
Scanning Probe Microscopy Controller and Data Visualization Software
Open-source KVM software