I built a series of iot sensors and actuators for home heating. All based around the same modular firmware and hardware concept [0].
We have 3 of those boards scattered around the house and one sitting outside reporting external temperature, humidity, pressure and air quality. The 3 boards inside measure the same values as well but also control the heating system.
Finally, all the data is sent to a raspberry pi over mqtt for logging. Data is presented over a web interface which also allows to set the desired temperature.
Oh, and also a clock with date and time synchronized over NTP showing the external temperature and humidity. Super useful to get dressed in the morning ;) [1]
We have 3 of those boards scattered around the house and one sitting outside reporting external temperature, humidity, pressure and air quality. The 3 boards inside measure the same values as well but also control the heating system.
Finally, all the data is sent to a raspberry pi over mqtt for logging. Data is presented over a web interface which also allows to set the desired temperature.
Oh, and also a clock with date and time synchronized over NTP showing the external temperature and humidity. Super useful to get dressed in the morning ;) [1]
[0] https://github.com/broken-giobbe/ceci [1] https://github.com/electricant/ESP8266_NTP_clock