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

F.A. Keyboard Firmware

Rotary Encoder with NeoPixels and USB Interface

Simple ISP Flash Tools for various Microcontrollers

An Advanced BadUSB

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

Programmable MacroPad with Rotary Encoder and NeoPixels

USB controlled I²C OLED

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

QMK for 8051

USB controlled nRF24L01+ 2.4GHz Transceiver

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

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

USB-Blaster firmware that runs on cheap with CH552G chip

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

FAK user configuration repository

A library to automate Nintendo Switch games using CH55x microcontrollers.

Alternative open-source driver for generic 3-Key 1-Knob macropads (VID 0x1189). Features per-app profile auto-switching, system tray support, and a modern dark UI.