Home automation

Thermostat:

Sonoff and PID controller with HA:

• https://www.reddit.com/r/homeassistant/s/gh10r33Gmd
• https://www.reddit.com/r/homeassistant/s/HoWye9DqKi
• https://www.reddit.com/r/homeassistant/s/yEAGShgW6O