Wyze Thermostat Wiring Issues

I have installed other smart therms with no issue, but this one and some unconventional wiring is causing me issues. Any help would be appreciated. I can get power to the therm, but it does not recognize my heat and it does not turn on anything. Wiring of old therm below:

Red to R

Black to C

Yellow to 1

Blue to 2

White and Green not in use.

Unit has a heat pump.

Can anyone tell me what these 1 and 2 wires are and what else needs to be done to get my therm working?

This is a communicating thermostat. You’d need to set your heat pump to use a non communicating thermostat in order to use the wyze. I recommend you stick with your current thermostat for the best experience.