Reusing a Raspberry PI Model 1 and a sensor DHT 22, with a breadboard, I have implemented a simple Temperature Module that, through Ethernet Connectivity , can connect to my IOT Gateway and send temperature readings via MQTT messages.
The code, written in Python, is not so difficult.
In this video you can see the "HW". It is still in prototyping stage, next step is soldering and removing breadboard, to reduce the size.
https://youtu.be/r3S_ag_zRDw
Nice.
