The past months I’ve been working on creating my own smart thermostat.
More info is available at
http://www.janwagemakers.be/jekyll/portfolio/smartthermostat.html
and
https://gitlab.com/jan.wagemakers/thermostat/.
In 2012 I’ve connected a TC74 temperature sensor with a Raspberry Pi
and used a combination of a bash script and a web server to display the current
temperature on a web page.
Today, I’ve updated this setup. Instead of using a bash script, I now make
use of Apache and PHP.