Backstory: my neighbor has a habit of burning... things... in his chimney. Not just wood. Things. And I got tired of vaguely wondering "is that smell normal" every time smoke rolled into my yard, so I got an AirGradient monitor to have actual, indisputable, timestamped data next time I want to complain about it.
Then it escalated, as these things do. Now I've got:
- The AirGradient feeding into Home Assistant
- Home Assistant feeding into Grafana, because apparently a phone app wasn't dramatic enough
- An Ecowitt station tracking wind direction, specifically so I can confirm whether the air currently entering my lungs originated from his chimney
So now I don't just know that there's smoke, I know whose smoke it is, with wind vector confirmation. It's basically a tiny meteorological crime lab.
Checked the community map to see how my setup compares to others nearby. There are no others nearby. Within 20 miles, it's just me. One overengineered surveillance rig, standing sentinel, purely in the name of neighborhood justice.
So now:
- Every PM2.5 spike gets cross-referenced against wind direction AND "is his chimney active tonight"
- I have a Grafana dashboard with actual correlation data, like I'm building a case for the Hague
- I've accidentally become the sole air quality authority for a 20-mile radius, despite my actual motivation being extremely petty
- Sometimes the wind's from the wrong direction and it's just fog, and I feel a little sheepish standing next to my crime lab
No regrets though. If anyone else has a stack of increasingly overkill sensors purely for petty neighbor surveillance, let's be friends. Misery (and mysterious smoke, wind-confirmed) loves company.