I was wondering if it is possible to build a remote control device to control the central heat and air unit. The thermostat on the unit is controlled by remote control but I don't have a remote to the unit. I was just wondering if there was a way of figuring out the frequency of the unit without the factory remote control and then building the remote to control the temperature settings of the thermostat. The thermostat currently does not have any buttons for adjustment, the only way is through the remote control.
Thanks
Thanks