Hardware reference designs for boards that work with the MakeCode Arcade programming system (see http://arcade.makecode.com)
ESPboy port of the Arduboy2 library to compile, run and play Arduboy games
Driver for the SSD1306 and SH1106 based 128x64, 128x32, 64x48 pixel OLED display running on ESP8266/ESP32
Create, manipulate and convert representations of position and orientation in 2D or 3D using Python
Bootloader for STM32F103 boards, for use with the Arduino_STM32 repo and the Arduino IDE
Arduino STM32. Hardware files to support STM32 boards, on Arduino IDE 1.8.x including LeafLabs Maple and other generic STM32F103 boards