CH552X BASIC-52 V1.31 Int OSC 24MHz with I2C and SPI extensions. CH558/9 runs at 48MHz with I2C and SPI command extensions.

A keyboard and trackball in one, for efficient computer usage.

BASIC-52 Ver 1.31 along with I2C and SFR read/write using internal RAM, OSC using WCH CH552T assembled using ASEM-51 V1.3

CH552E NO LED due to low port I/O pins. JTAG pin assignment not same as original code.

Yet another USB numeric keypad using ch552g. Implement MacroPad using webhid.

Use a CH552g as an N64 controller

BASIC-52 Ver 1.31 with I2C operating at 24MHz internal oscillator and xRAM

This keypad features eight keys and a rotary encoder, and all inputs can be fully customized via WebHID.

A little USB stick that can switch VCC automatically by time based on CH552

基于 CH552 芯片的 HID设备，可以自动发送预设的键盘组合键

CH552 Devboard with ON/OFF switch, BOOT and RESET buttons. Indicator lights and lots of pins.

BASIC-52 running on CH552T with integrated USB-TTL using CH551G or CH552G. Software, Gerber and Examples included.

Custom Firmware for Macropad with 8 keys based on IC CH552g

Custom firmware for a 3-key + rotary encoder macropad. Up to 3 layers, sequences.

Examples for CH552 microcontroller development in C with SDCC compiler. Covers Blink, ADC, PWM, Timer, Interrupts, and I2C. Updated regularly for improved project development.

Just another Numeric Keypad using ch552g

Type with only one hand

A simple breakout board with minimal hardware design for the CH552g

Custom firmware for a 3-key + rotary encoder macropad (Based on IC CH552g) (https://hackaday.io/project/189914)

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