Raspberry Pi Pollution Monitor Update

So things have progressed with this project. I now have a working prototype that runs from the RavPower power bank mentioned here

This combined with solar input gives quite a good run time on WiFi

I have also got 3G connectivity using OpenVPN working. This allows me to tunnel the SQL data back to the home server where Grafana does its thing!

I have launched checkyourair.co.uk which has a live feed on PM2.5 stats and hopefully I will get to the point where there are multiple sensors in Preston.

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