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Airsensor

This Arduino project implements an indoor air quality sensor based on the ESP8266.

Assembly

Components

Data transmission

The sensor data can be recorded via:

Pins

Connect the components to the following pins:

  • MH-Z19 or MH-Z18:
    • D7 (GPIO13) as RXD2
    • D8 (GPIO15) as TXD2
  • BME280 and SSD1306:
    • D3 (GPIO0) as SDA for I²C
    • D4 (GPIO2) as SDC for I²C