Yes I think it's just an analog voltage from 0 to 12. Not sure about current atm I will measure when I get home. It could just switch between them but if it could vary then that would be better as the heating comes on for different amounts of time dependant on how low the voltage is from my understa...

Hi, I have a thermostat which is controls the heating using a variable amount of 12V. When the voltage drops below 5V the heating comes on, and lower the heating stays on longer. I am wondering how best to hook the pi up to the heating instead of the thermostat so I can control the heating from the ...