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TOUsing a computer to control two Modbus RTU RS485 relay modules, each with a different address. The relay modules are connected to a 12V power supply, and an RS485 to USB converter is used to connect them to a Windows computer, which acts as the master to send Modbus RTU hex commands to turn the relays on and off.
#modbus #modbusrtu #automation #smarthome #rs485 #relaymodule
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