Some ultra low cost, unique layouts mechanical macropad using CH552G

F.A. Keyboard Firmware

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

A BLE & 2.4G Keyboard Firmware using nrf52810/52811/52832

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

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

Simple ISP Flash Tools for various Microcontrollers

A full 32 key mechanical keyboard that can be made for only $5

Programmable MacroPad with Rotary Encoder and NeoPixels

USB controlled I²C OLED

小巧的使用CH552实现的DAPLink

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

USB controlled nRF24L01+ 2.4GHz Transceiver

CMSIS-DAP compliant debugging probe with SWD, JTAG, and VCP support

CH55X assembly instruction description

CMSIS-DAP compliant SWD Programmer

Programmable Macropad with NeoPixels

🦾 Firmware for a cheap CH552G macro keyboard off AliExpress/Amazon to "touch" a comma three from a comfortable position