Modbus-IoT (Modbus over MQTT)
Modbus?? old school protocol (more than 40th years). when Modbus created, it was created for Serial communication via RS485. after year by year, technology was changing and ethernet / TCP widely used in PLC and industrial control system, then Modbus READ MORE
MQTT – IoT Protocol with Node-Red
MQTT tutorial – Node-Red Broker+Client HiveMQ : http://www.hivemq.com/demos/websocket-client/ Local Client : Node-Red