How to Build a Mobile Particulate Matter Sensor
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About a year ago I wrote about how to measure the air quality with a Raspberry Pi and a cheap sensor. Make sure to read that article first! We’ve been using this setup in our school and privately for a few years now. However, this project has one disadvantage: it is not portable, but depends on a WLAN network or a wired network connection. You actually cannot access the measurements if the Raspberry Pi and the smartphone or computer are not in the same network. That’s why some time ago we added a small screen to the Raspberry Pi so that you can read the values directly from the device. How to set up this screen for our mobile fine particulate matter sensor and which additional configurations are necessary, I would like to describe in this article.Setting up the screen for the Raspberry (...)