I'm thinking about building a little nest style thermostat (but a little different). I want it wi-fi enabled and I'd prefer to not have to use batteries since wifi will probably eat up some.
I know the 24V line is used to turn on the heat, cold and fan. I don't know how dirty that 24V gets, but I was wondering if it's feasible to use a small 1VA transformer (115V/36V which would give me about 24V/7.5V and then rectify that to about 6.1V.
I'm guessing there's enough juice in that 24V line to run an arduino with wifi. Will the power be too dirty? Is there not enough power in the line?
I know the 24V line is used to turn on the heat, cold and fan. I don't know how dirty that 24V gets, but I was wondering if it's feasible to use a small 1VA transformer (115V/36V which would give me about 24V/7.5V and then rectify that to about 6.1V.
I'm guessing there's enough juice in that 24V line to run an arduino with wifi. Will the power be too dirty? Is there not enough power in the line?