Fiddling with 2 off matte black domestic flat radiator panels heating a 7,000 litre swim spa. ESP8266 running DS18B20 1-wire sensors switching on a small pump when solar output exceeds spa temperature by 1 deg C
The Raspberry checks its 2 DS18B20 sensors (room / garden). He makes an average in every 5 minutes, and post it to thingspeak.com.
This project monitors four DS18B20 temperature probes. The data is collected via an ESP8266 NodeMCU micro controller.
This project monitors two DS18B20 temperature probes. The data is collected via an ESP8266 NodeMCU micro controller.