Build a Low cost PM Monitor

ourairquality

Low cost and quite precise DIY Particulate Matter Monitor. This DIY device will allow to measure PMs, Temperature, Humidity and Barometric Pressure for less than US $30.

I am not going to describe the whole process of building the device because it is well explained by the author at ourairquality.org. You can find a ton of information about the sensors and the electronics on his article.

  • It uses the Plantower PMS5003 which is a low cost laser particle counter ∼US $18.5
  • ESP8266 Nodemcu is a WiFi enabled computer board US $3.2
  • BME280 is a Temperature, Humidity and Barometric Pressure Sensor US $4.9
  • DS3231 is a Precision RTC Clock Module Memory US $2

  • It is Micro USB Powered

 

For more info visit: https://ourairquality.org/index.php/build-an-air-quality-monitor/

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