Allows you to connect your Modbus RTU slaves (such as sensors, energy meters, HVAC devices) to Modbus TCP/UDP masters (such as monitoring systems, home automation systems). You do not need commercial ...

The code uses "Serial1" for communicating with the MAX485 in Arduino Mega, with pins 19 and 18. Please adjust the communication pins according to the microcontroller you are using. Alternatively, you ...