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ESP8266 indoor air quality monitor

Using an ESP8266 D1 Mini and some sensors to monitor air quality in different rooms of the house

David H. Bronke

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Description

I'd like to build some cheap WiFi-capable air quality monitors for our house.

Components

1 × ESP8266 D1 Mini WiFi-capable microcontroller dev board
1 × SDS011 PM2.5 particulate matter sensor
1 × MQ-2 Flammable Gas & Smoke Sensor
1 × DHT22 Temerature and humidity sensor

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