https://www.electrodragon.com/product/android-host-interface-board-ch9343g/

Android Host Interface Board CH9343G

USB Android HOST 芯片 CH9343

board map

P1 = PWMO p2 = Serial P3 = GPIO P4 = I2C P5 = Power Supply VCC/GND P6 = SPI P7 = USD P8 = USB2 J1 ~ J5 = ? J6 = ?

ref

  • repository - https://github.com/Edragon/WCH-CH9343
    • inside original PCB file and SCH
  • chip page link - http://www.wch.cn/product/ch9343.html
  • https://www.wch.cn/products/CH9343.html