3 ms·

Link to project website: https://senseable.mit.edu/flatburn/ https://senseable.mit.edu/flatburn/ Link to assembly guide: https://github.com/MIT-Senseable-City-

Link to project website: https://senseable.mit.edu/flatburn/ https://senseable.mit.edu/flatburn/ Link to assembly guide: https://github.com/MIT-Senseable-City-Lab/OSCS/blob/main/Build/Handbook/Flatburn_%20Assembly%20Guide.pdf https://github.com/MIT-Senseable-City-Lab/OSCS/blob/main/Bui... Link to bill of materials: https://docs.google.com/spreadsheets/d/1-fR-0hTxHKbjaRf8DbH62WgUFVeNE4eUEsaAd-YdDYg/edit#gid=2089068555 https://docs.google.com/spreadsheets/d/1-fR-0hTxHKbjaRf8DbH6... Naively searching for every lines of the bill of materials gives me around $300, with a handful of items being around $50 and everything else under $5. I'm sure a hobbyist could find the parts for cheaper, especially things like individuals connectors that I found for around $5. I've seen them go as low as $0.25 when bulk purchased. Disclaimer: it's possible that some SKUs led me to the wrong products. I am not into electronics. I encourage you do to the same exercise before drawing conclusions.

JKCalhoun 4y ago
Perhaps some industrious person (looks around room) could put together a BOM on a site like Mouser to make it a little easier to order many of the parts.
clnq 4y ago
Not to undermine the DIY aspect which could be fun, but it looks like you could buy an Atmotube for about half as much (if you take the research survey) — https://ukstore.atmotube.com/ https://ukstore.atmotube.com/. Though it doesn't register noise levels. They can also build you an Atmocube which can measure noise and a few other things for $200-$500 based on what I found online.
- greggsy 4y ago
  Not sure why it needs an acceleromete, gyro or gps, and the solar circuitry might not be required for all use cases. Seems a bit over engineered, unless they were gearing towards a roving platform your could put on the back of your bike, or a balloon.
  - Johnny555 4y ago
    unless they were gearing towards a roving platform your could put on the back of your bike, or a balloon Or a car, like the Flatburn device in the linked article?
    - clnq 4y ago
      But the air above some streets is quite polluted in terms of NOx and particulate matter, and the air above the open road is very clean. In the cities, the street pollution levels vary a lot based on time (peak, off-peak) and day (weekday, weekend, holiday, public event day). I wonder if there would be any useful signal left in the noise.
- Karawebnetwork 4y ago
  Anecdotal, but my Atmotube v1 did not last very long after I was only a little rough with it (tied to a backpack). I wonder if the solution brought here might be more sturdy / easier to repair in the context of developing nations.
sacnoradhq 4y ago
Overly complicated and expensive.
deleted 4y ago
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JKCalhoun 4y ago

Perhaps some industrious person (looks around room) could put together a BOM on a site like Mouser to make it a little easier to order many of the parts.

clnq 4y ago

Not to undermine the DIY aspect which could be fun, but it looks like you could buy an Atmotube for about half as much (if you take the research survey) — https://ukstore.atmotube.com/ https://ukstore.atmotube.com/. Though it doesn't register noise levels. They can also build you an Atmocube which can measure noise and a few other things for $200-$500 based on what I found online.

greggsy 4y ago
Not sure why it needs an acceleromete, gyro or gps, and the solar circuitry might not be required for all use cases. Seems a bit over engineered, unless they were gearing towards a roving platform your could put on the back of your bike, or a balloon.
- Johnny555 4y ago
  unless they were gearing towards a roving platform your could put on the back of your bike, or a balloon Or a car, like the Flatburn device in the linked article?
  - clnq 4y ago
    But the air above some streets is quite polluted in terms of NOx and particulate matter, and the air above the open road is very clean. In the cities, the street pollution levels vary a lot based on time (peak, off-peak) and day (weekday, weekend, holiday, public event day). I wonder if there would be any useful signal left in the noise.
Karawebnetwork 4y ago
Anecdotal, but my Atmotube v1 did not last very long after I was only a little rough with it (tied to a backpack). I wonder if the solution brought here might be more sturdy / easier to repair in the context of developing nations.

sacnoradhq 4y ago

Overly complicated and expensive.

deleted 4y ago

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