Build a Low cost PM Monitor


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 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:


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