I have a pic microcontroller that I can connect to with a USB to rs232 cable and I can communicate with Modbus protocol now i want to connect to the pic microcontroller with arduino mega2560 I connected the arduino to rs232 to ttl (max3232) and the max 3232 is connected to the pic I use this libr…

[image] morteza20deris: is it even possible to use Modbus Master Library to communicate with the rs232 port? no idea - I avoid using Modbus

Sending Modbus write single register from Arduino to pic microcontroller

horace May 6, 2024, 11:11am 21

no idea - I avoid using Modbus

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