GasMeter
The gasmeter is a ESP8266 Nodemcu with an optical infrared sensor that detects the mirror on the last red digit. Also there is a DS18B20 temperature sensor.
The calculated gasmeter information and measured temperature is posted in MQTT (makerspace/gasmeter & makerspace/temp/CV)
See https://github.com/MakerSpaceLeiden/gasmeter for the current source.
