A ble keyboard firmware using nrf52810/52832

Collection of various development boards for microcontrollers (e.g., CH55x, CH32, PY32, STC8, STM32) and accompanying example software.

An open sourced python tool for flashing WCH CH55x series USB microcontroller with bootloader v2.30, v2.31 & v2.40.

Rotary Encoder with NeoPixels and USB Interface

USB Composite Device Demo (Keyboard, Custom HID and Massive Storage) using CH55x

Templates for bare-metal firmware development for some entry-level microcontrollers

Programmable MacroPad with Rotary Encoder and NeoPixels

USB controlled I²C OLED

An ISP flashing tool for the WCH CH55x, CH579, CH32F103 under linux

USB controlled nRF24L01+ 2.4GHz Transceiver

Simple Board that can be used as a Mouse Jiggler, a Rubber Ducky, or a Caps Blocker

CH55X assembly instruction description

A CH551 based POV magic bar ;)

Using SDCC with various chips from WCH (Nanjing Qinheng Microelectronics)

WCH MCU Pinouts

CH554 based USB to Quadrature Mouse and Keyboard Interface

An open sourced python tool for flashing WCH CH551/CH552/CH554/CH558/CH559 USB microcontroller with bootloader v2.30 or v2.31 (and maybe v2.40)

CH554E development board

Mouse Jiggler for CH55x (CH552/CH554/...)