Thermostat

Status : Proof of concept (under construction)

This is a personal project where I’m creating a smart thermostat. The idea is to make a dumb thermostat where you can change the setpoint over bluetooth. A small computer like the Raspberry Pi communicates with this dumb thermostat over bluetooth to make the dumb thermostat smart.

Theoretically it is possible to let just a computer like the Raspberry Pi control the heating, but I don’t trust computers enough to let them do the control directly. Think about things like sd-card or file system corruption, which on occasion can happen.

By making use of a dumb microcontroller based thermostat, it should still be possible to control the heating when the smart part fails.

pic18f1320 : dumb thermostat

Raspberry Pi : smart thermostat

JAVA Spring Boot program that:

  • communicates with dumb thermostat over bluetooth
  • checks if a user is home by checking smartphone/bluetooth
  • creates a web interface at port 8080
  • reads the outside temperature from http://tgftp.nws.noaa.gov/data/observations/metar/decoded/EBAW.TXT (hard coded at the moment)
  • use the outside temperature to lower the setpoint if it’s warm outside
  • it’s possible to add/delete “users” and “rules” by using the web interface

Source

https://gitlab.com/jan.wagemakers/thermostat/

Screenshots

Index

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Users

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Rules

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Log

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