In this section, we will try to build a simple IoT app for sending data from a sensor simulator module to a receiver device (a PC or a cloud), using a Raspberry Pi hub and the OPC UA protocol:
Data flow from a sensor simulator to a receiver device
The OPC UA protocol is similar to Modbus, but works with more data types, and has no serious limitations, while providing for security, compression, and low latency.
The protocol was developed by the OPC Foundation as an industrial machine-to-machine communication protocol. OPC UA is an improved version of the Open Platform Communications (OPC) protocol, with one ...
