It is time for another DIY project and today I will show you how to create Smart Smoke Sensor for Home Assistant with D1 Mini, MQ-2 smoke & gas sensor & ESPHome. Do it yourself or DIY Smoke Sensor for Home Assistant is quite easy and I will guide you through all of the steps.
WATCH HERE 
DIY Smoke Sensor for Home Assistant with D1 Mini, MQ-2 & ESPHome - YouTube
READ HERE https://peyanski.com/diy-smoke-sensor-for-home-assistant/
Cheers,
Kiril