NWI1245 DAT

https://www.electrodragon.com/product/esp32-can-rs-485-wire-interface-shield/

Main functions:

• general load switching - high-side-driver-dat
  • current driving capability is ~ 36V 5A
• RS485 communication
• CAN communication

Used ESP32-DevKitC Pins

• CAN UART
  • IO23 = CAN0_TX
  • IO22 = CAN0_RX
• UART1
  • IO17 = TXD1
  • IO16 = RXD1
• UART0 (default used by USB-TTL bridge chip)
  • TXD0 = TXD0
  • RXD0 = RXD0
• IO33 = Power_ADC

• IO5 = LED

• general load switching
  • IO12 = CTRL1
  • IO19 = CTRL2 - chip is not soldered by default

  • IO13 = STATUS1

  • IO18 = STATUS2

Schematic of peripherals

Dimension and pin definitions

• back side selector for UARTs

power supply

• DCDC1 - NWI1245

ref

• code please refer to our ESP32 arduino github repository
• https://github.com/Edragon/Arduino-ESP32

• https://github.com/Edragon/Arduino-ESP32/blob/master/Sketchbook/interface/RS485-1/RS485-1.ino

• RS485-dat - CAN-dat - high-side-driver-dat