MQTT relay [MQTT] "Omega2"
Plan loock like that:
Finaly I was add Temperature sensor on Onion2 and Cooler - controled by PWM works satisfactory.
(Using Dc-DC converter beuse i dont have 230V->3,3v, and 5V relay, lack 3V relay.)
Which packages did you install on your Omega? Do you have example code available?