Hey guys!
I am Nerves noob, so I hope the question makes sense. I’d like to measure temperature and humidity in a couple of rooms and refrigerators in a small building. My idea was that I need some ready-made battery-powered sensors that broadcast measurements over Bluetooth and some “collector” that can collect that info and send it via GSM to a central server.
Did you try something like that? Can you recommend what hardware I could use?