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SANPres09 t1_jcfrl6g wrote

I read the article and couldn't find it they listed hardware somewhere for people to build it yourself. Do PM 2.5 or smaller kits exist somewhere?

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DweadPiwateWoberts t1_jcfygv2 wrote

https://github.com/MIT-Senseable-City-Lab/OSCS is all I can find for now

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Now_with_more_cheese t1_jcg1l5s wrote

And here’s the electronics bill of materials: https://docs.google.com/spreadsheets/d/1-fR-0hTxHKbjaRf8DbH62WgUFVeNE4eUEsaAd-YdDYg/edit

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sleight42 t1_jch4zss wrote

That's.... a long list. And no prices listed.

$100ish just for the enclosure and unknown for the electronics.

This seems more costly than several closed source solutions.

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kilgore_trout8989 t1_jciv0vr wrote

19 entries is like the BOM size for a tiny homemade LCD display haha. Some of these components are like a couple bucks, in bulk. Switches, buck converters, USB ports, accelerometers, etc. are probably things just lying around the house of this kind of things target audience.

Edit: They'd also likely be able to build their own enclosures with a 3d printer.

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douglasg14b t1_jciros5 wrote

> That's.... a long list

The list has 19 components, that's not a long list at all?

> $100ish just for the enclosure and unknown for the electronics.

The model numbers are there, you can price them out! It's not a big mystery.

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sleight42 t1_jcj83gb wrote

Ok, but the enclosure list included prices. It would be helpful to have similar in the electronics BOM. But, then, the electronics part probably isn't for me or most people.

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fishbulbx t1_jchbc7a wrote

GPS, solar power, LTE antenna... this isn't a cheap solution for checking air quality... it might be a cheap solution to have a fully portable self-powered air quality sensor.

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Spread_Liberally t1_jciffwf wrote

I mean, home users could skip the solar power, LTE components, and enter coordinates manually instead of using GPS.

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ElSatchmo t1_jcie4ks wrote

A lot of communities use PurpleAir air sensors. They measure PM 2.5 and only cost around $200 iirc.

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