Just a quick update for a DIY ESPHome Thermostat...
Using just a D1 Mini programmed with (yes you're guessed it) ESPHome. Dave put together a working Wi-Fi thermostat. It is bi-directional meaning, it is able to control the Software thermostats in Home Assistant and get updates from Home Assistant and everything you need is displayed in the integrated OLED display.
Once all the kinks are worked out a step-by-step tutorial will be made and the full code will be released.
Once all the kinks are worked out a step-by-step tutorial will be made and the full code will be released.