My scenario:
I have several Zigbee sensors which all feed the data to a Raspberry Pi. I would like to transmit the average value and or alarms when a value is too high via Lora.
The calculation and many more conditions I calculate everything in Node Red.
Also I would like to control a fan via a relay on this Raspberry, mostly it does this by itself (regarding the values from above) but it would be nice to be able to control it manually.
I am not really interested in active control and I think that this is very compatible with the conditions of TTN.
I can also directly access a python script via node red, but to directly access it via serial would be awesome of course.