Cool. So we could get air quality apps for the phone or smartwatch?

Chasing through to https://www.bosch-sensortec.com/products/environmental-senso...

> Discover the PurpleAir PIXEL, one of the first end devices featuring the BMV080 particulate matter sensor for precise local air quality measurement. This user-friendly device provides real-time PM2.5 readings with a quick response time, clearly displayed via LED indicators. The BMV080‘s fanless design ensures completely silent operation, making it both effective and unobtrusive.

https://www2.purpleair.com/products/purpleair-pixel

That's the form factor you'd be looking at when its included with the rest of the supporting circuitry and logic.

So... possibly might be able to get it into a smaller package if the data display is externalized (Purple Air uses LEDs).

My parents are interested in this as one of their use cases is to put it on their e-bike so that they can be made aware of worsening air conditions after they've left the house.

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mjs 4 days ago | parent | prev [-]

Might need to wait a few generations. It costs ~30€ for a single unit (maybe half that at volume?). And not waterproof.

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progbits 4 days ago | parent | next [-]

It needs an external lens anyway so you could shove it into the camera assembly, waterproofing is not an issue.

Cost is one, but this isn't something you can measure quickly on demand, you want to keep averaging multiple measurements over time. So unless you want to hold out your phone for minutes to get a measurement it doesn't seem practical.

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user_7832 4 days ago | parent | prev [-]

Where did you see 30 euros? If so that's quite good I think - I remember (a long time ago when I was researching air sensors) Honeywell's laser sensors were similarly priced. A low price point will absolutely help Bosch drive adoption.

	▲	mjs 3 days ago \| parent [-]
		Re price, there's links to retailers from https://www.bosch-sensortec.com/products/environmental-senso...