The basics

  • a WiFi connection
  • power supply through a micro-USB

Preferably attach the sensor at the streetside of your place

Build your sensor


NodeMCU ESP8266, CPU/WLAN , this is the WiFi connection
SDS011 Particulate Matter Sensor, this is the actual sensor
DHT22, temperature & air humidity sensor
Cables to connect the nodeMCU to the SDS011 and the DHT22
USB Cable with micro-USB , length depending on installation
– USB adaptor (5v)
– Flexibel tube diameter 6mm, lengthe ca. 20cm (DIY store)
– Two sanitary pipe fittings, diameter 90mm (DIY store)


For instructions, we’re referring you to the Luftdaten website. You can fine them here in Dutch, French and German. Unfortunately English instructions aren’t available yet.

Connect to server

You have to register your sensor with yourself. You simply have to sand an e-mail to with the following info:

  • The WiFi ID (the ESP8266, you can see it as a number in your WiFi network
  • Your address, including street, number and zip code
  • A brief description of the surroundings of your sensor, like high above ground level, close the the street, a lot of traffic, etc
  • Your email address (will not be published)

After processing your info, your sensor will appear on our map.

We are using a SDS011 sensor, which is capable of measuring PM 2.5 and PM 10. This sensor has a good value for the money: it has proven its value in experiments abroad and is way more affordable than even semi-professional sensors. We are currently in the process of analysing the validity of the measurements by comparing it to the official measurements. The code used for setting up the sensors is adopted from the Luftdaten project in Germany. That is a project in Germany with comparable goals and philosophy, albeit with a considerable head start: they have hundreds of sensors up and running all over Germany and abroad.