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

Just another Numeric Keypad using ch552g

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

NRFLite port for CH55x microcontrollers using CH55xduino.

CH552 8051 - first git repository - June 2024