ESP32 CAN RS-485 Wire Interface Shield

Description

This is an interface shield for the common ESP32 development board ESP32-devkitc, or similar and cheap form factor ESP32-goo.

Board Features:

• The interface or connectivity includes:
  • CAN interface
  • RS-485 interface
• One channel high-load driver (customizable for two channels)
• The shield also provide up to 18V/2A power supply 5V to main ESP32 board.
• Lead out all the extras pins on the side.

Pin Definitions:

• The CAN interface TXD/RXD -> IO23 / IO22
• The RS-485 interface default TXD/RXD -> IO17/IO16 (UART1)
  • Tested with espsoftwareserial arduino library. Or the sketch here.
  • Can be connected to hardware serial by the jumper selection.
• High load driver 1 control by IO19, and status by IO18.
• One extra programmerable LED indicator – IO5
• One extra power supply voltage read – IO33

Additional information

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