This is the second post about hooking up Heat Recovery Ventilator to Home Assistant. Previously, I wrote about the hardware aspect and here I’ll discuss the software that is needed to make it all work. ESP8266 Firmware There are several IoT frameworks available for ESP8266. I’ve decided to build my solution on top of Homie for ESP8266. Homie is a thin and simple MQTT convention for the IoT, it integrates very well with Home Assistant and supports advanced features like initial setup of de...
