What is it good for? 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 ...

Monitors a rain/weather safety sensor Tracks roof position via fully open/closed proximity sensors Controls roof movement through RS-485 Modbus communication with a VFD motor (OMRON 3G3M1-AB007, 3-PH ...

Welcome to my quick review of an inexpensive 2-channel 5V relay module controlled via RS485 bus utilizing Modbus RTU protocol. As claimed by some online sellers, this easy-to-get Modbus RTU 2-Channel ...