Something that was on my to do list for a long time: document one of my older projects: Heating Control. This project allows you to control your Central Heating system (actually, the thermostat).

I have to define “control” because you don’t have full control. What can you do: Switch a pre-defined program ON or OFF. Switching it OFF would make the thermostat fall-back to it’s normal program. On Honeywell thermostats this mode is called “Tele”.

• Tele:  configured 17 degrees
• Normal: running normal program

More information: Heating control project page