- #homeassistant is required and #esphome
- you need working wifi signal next to your gas meter
- gasmeter, i have an G4 RF1
- some sort of ESP8266, i am using a Wemos D1 mini
- hall sensor and breakout board, i used a KY-024 (pay attention to the voltage, it needs to output 3,3v not 5v)
Example Code i used to create a smart gasmeter for a typical german Gas Meter check out 00-gasmeter.yaml
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create a new board / instance in ESPhome in your Homeassistant
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add the code from 00-gasmeter.yaml
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change the api and secret keys of the yaml file
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check the analog input voltages and adjust them in the yaml file
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it can take quite some testing until you figured out the right values for the upper and lower limit
IMPORTANT! If you want to use variant 2, you need to have an 49E hall Sensor. 49E will give an output based on the magnetic field, not only if there is a field or not. Some boards are labeled as 49E but have other Hall sensors. Variante 1: Hall Sensor https://amzn.to/3H5S6zG *
Variante 2: 49E lineare Hall Sensoren: https://amzn.to/4100lq5 *
ESP8266 https://amzn.to/3kBZawl * Netzteil https://amzn.to/3XDVOaI *
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