Replacing HF_LPT120A in a millheat heater using a Wemos D1 mini and ESPhome
Check this post for connecting the Wemos D1 mini https://community.home-assistant.io/t/guide-millheat-hardware-modification-making-it-open-source/129800/34?u=jdolven
Remeber to edit Wifi SSID and password, OTA Password and HA API Password in Varmeovn.yaml