Anyone successfully use any of the MQx gas sensors with ESPHome?

[zenzay42]

I actually do not use the digital output pin at all.

I use this method:

Natural Gas leak/Air quality sensor, ESPhome and MQ2 sensor

This a simple gas leak/smoke sensor that will beep an alarm when triggered and send a notification to android based on ESP8266 nodeMCU. The alarm will sound every 2 seconds and its the same tone as microwave oven. I got a speaker from an old motherboard but any small speaker will do. I have one esp8266 in the basement between the furnace and the water heater and one esp8266 in the kitchen above the stove. Natural gas (mostly methane) is less dense than air. [image] [image] [image] [image] …

I do not want to rely on HA/WiFi being up, so I decided on this approach. I also disabled ESPHome rebooting when losing connection.