I’m considering getting one of these as a way of remote controlling underfloor heating in a weekend property. I may upgrade to having an emonPi hub at some stage but for the first step I’d like to use the wifi relay standalone. To make it a bit more failsafe, I have a couple of questions:
- could I add a screen (e.g. 2 line LCD)? would I have to change the firmware to display the relevant information?
- what about an override button that closes / toggles the relay?
Finally, I’m considering leaving the existing thermostat in place and wiring the new one in parallel. Then I can leave the old one off but use it as an override if necessary (I don’t want to have no heating if the wifi is not working for reason). Any thoughts on whether this will work?