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
• please note one chip is not soldering default in case you don't need two to save cost
• try IO12 or IO19
• VBAT pin up to 36V, and OUTA or OUTB will be on/off when you digitalWrite it high or low
  • IO12 = CTRL1
  • IO19 = CTRL2
  • IO13 = STATUS1
  • IO18 = STATUS2

Schematic of peripherals

Dimension and pin definitions

• back side selector for UARTs

removing tips

• use a small driver to leverage in the between carefully

power supply

• DCDC1 - NWI1245

demo

https://www.youtube.com/shorts/TeaZ1xKcAqg

ref

• code please refer to our ESP32 arduino github repository
• https://github.com/Edragon/Arduino-ESP32/tree/master/BSP/NWI1245/power-switch-test
• 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

• voltage-divider-dat