Some ultra low cost, unique layouts mechanical macropad using CH552G

F.A. Keyboard Firmware

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

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

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

Rotary Encoder with NeoPixels and USB Interface

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

Simple ISP Flash Tools for various Microcontrollers

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

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

USB controlled I²C OLED

Programmable MacroPad with Rotary Encoder and NeoPixels

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

Programmable Macropad with NeoPixels

CMSIS-DAP compliant SWD Programmer

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