AirQuality sensor based on Wemos / BME280 / MQ135 for Jeedom
Lib to be added in the sketch:
https://github.com/GeorgK/MQ135
Other Lib:
ESP8266WiFi.h Wire.h SPI.h Adafruit_Sensor.h Adafruit_BME280.h
Calibration:
- Power the system for 48H
- Disconnect and put outside for 30min
- reconnect and launch sketch in monitoring to immediatly record RZERO
- Update RZERO value un MQ135.h , ligne 27
For information "good fresh "air is around 400ppm