Your experience with modbus on Arduino (esp32 S3)

• Your experience with modbus on Arduino (esp32 S3)
  Posted by Irilia on 24 Mar, 2024 03:05
• Hello I interested by your experience with modbus sensor on Arduino esp32 S3, what difficulty you encounter, or incompatibility.
  I'm curious in general to know if I can consider modbus for future projects.
  Best regards Irilia.
• #1 Reply
  Posted by tooki on 25 Mar, 2024 19:13
• Lots of people do that. The hardware complexity (if you can call it that) is that MODBUS used RS-485 as the physical layer, so you need an RS-485 transceiver to convert to/from the RS-485 voltages.
• #2 Reply
  Posted by Irilia on 26 Mar, 2024 02:18
• Rs485 TTL Yes this converter is easy to find 
• #3 Reply
  Posted by Shell Albert on 27 Mar, 2024 01:15
• According to my knowledge, Modbus is a protocol working in application lawyers. As your mentioned before, it does not care about the physical lawyer. Many people using modbus over RS485, CAN, even TCP. It's indeed a good choice for low density data transfer application.