Board Map

Version V2 updates:

  • added ADC port with voltage ladder P11
  • changed LED pins to P43 P42
  • changed lead out pins
  • new type micro-USB part

V1

  • microUSB = USBA_Female (bottom) = DM/DP
  • HS_USB (top) = HS_DM/HS_DP

  • LED = P14 P15 P16 P17

Demo Code

default firmware, demo code at our git - https://github.com/Edragon/WCH_CH55X-APP

WCH_CH55X-APP/CH559/CH559-IO42-43/prj/CH559.hex

board sch

ref