Board map

check list

Interface

RS485-DAT

  • use breakout board MSP1076-dat, switch breakout board's direction to change input or output direction
  • reversal direction as breakout boards, solder on the main board
  • 8 channels IOs directly from ESP32 to isolator, later V2 version use IO expander instead.

RS232-DAT

Opto-coupler IO channels

output with mosfet driver

  • IO14
  • IO27

direct output

  • IO13
  • IO04

direct input

  • IO34
  • IO35
  • IO32
  • IO33

power supply