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I thought the DIY air-quality monitor earlier today was neat but this blows me away.

Some serious next-level hardware hackers this generation.

I get worried everyone is turning into dumb iphone+app users but this advanced creation stuff restores faith.

Link to the DIY air-quality monitor?

uses a $20 BME680 on a $10 PI, I am really tempted to try it since the standalone sensor for my weather station is like $150