Screen: Drive LEDs with MCU Part1

This is the working demo board, CH32V003 connect to V7B or MPRO driver board I2C interface. This way can save one USBHUB and ATMEGA, only need a very low cost CH32V003(0.1USD)

Source code upload to

MPRO and V7B I2C CLK/DAT are in different position, so need a switcher to compatible them.

We also make some demo boards, if you need them contact support(a)