Additional drivers ported to the CH552 (using Wagiminator library)

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

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

An Open-Source CMSIS-DAP Debug Probe based on DAPLink and USB bus convert and it can realize USB convert to serial interface based in CH552, low-cost of $5 dollars

NRFLite port for CH55x microcontrollers using CH55xduino.

USB controlled nRF24L01+ 2.4GHz Transceiver

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

Programmable MacroPad with Rotary Encoder and NeoPixels

An Arduino (Ch55xduino) sketch for CH551 or CH552 MCUs that makes it possible to connect a TI calculator to a computer over USB.

4NES4SNES from Raphnet ported to WCH CH551/CH552/CH554 (plus PSX controller support)

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)

CH551 and CH552 Programming tool for Bootloader Ver2.3.1

A 60% bluetooth keyboard (Hardware)

USB-Blaster instance on CH55x MCU.

CH55X assembly instruction description