I would like to monitor and record when my furnace thermostat calls for heat. It is a 24VAC circuit that needs to be monitored and from my understanding an opto isolator could be used to provide a 0 or 1 output signal (on/off) for an Arduino Uno or similar. That is about as far as my understanding goes and hope someone could provide some assistance with designing this.
As an extension to this eventually I would like to monitor the furnace for calls for the circulation fan, heat and/or cool.... but let's work on the heat first.
I am open to learning ore about the design if someone has some sample diagrams/ applications.
Cheers.
As an extension to this eventually I would like to monitor the furnace for calls for the circulation fan, heat and/or cool.... but let's work on the heat first.
I am open to learning ore about the design if someone has some sample diagrams/ applications.
Cheers.