WS2812 FX library for Arduino and ESP8266
Build your own GPS unit
Dew Controller Feature Rich
mySQM powered by Arduino Nano
Arduino Focuser, fully ASCOM complaint
Arduino Nano DC Motor Controller
Set app volumes with real sliders! Arduino project to build hardware
myUSBCtrlr
A human interface device programmable
Free Open Source H/W S/W for USB-GPIB interface