Now_with_more_cheese t1_jcg1l5s wrote on March 16, 2023 at 3:57 PM

Reply to comment by DweadPiwateWoberts in Open-source tool from MIT’s Senseable City Lab lets people check air quality, cheaply. by chrisdh79

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

sleight42 t1_jch4zss wrote on March 16, 2023 at 8:05 PM

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.

kilgore_trout8989 t1_jciv0vr wrote on March 17, 2023 at 3:32 AM

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.

douglasg14b t1_jciros5 wrote on March 17, 2023 at 3:04 AM

> 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.

sleight42 t1_jcj83gb wrote on March 17, 2023 at 5:49 AM

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.

fishbulbx t1_jchbc7a wrote on March 16, 2023 at 8:46 PM

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.

Spread_Liberally t1_jciffwf wrote on March 17, 2023 at 1:27 AM

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