ESP8266-12 waking up from deep sleep every 30 minutes and reporting data to thingspeak.
(Unless temperature is over 45 degrees, when it only sleeps for 5 minutes between the reports)
Sensors are DS18B22.
Temperature
Experimental electrical usage monitor

Temperature in Wine Cave

OLD stuff
Outside temperature @home fetched from cosm.
Uploaded from a netduino plus reading ds1820 sensors via onewire
Part of this feed my dashboard Currently doing some stability testing and code optimization with 15 ds18b20 connected to one netduino plus. At the moment it takes 34 11 seconds to read all the sensors..