I'm collecting some notes from across the site, including the #air-sensors and #particle-sensing ...
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warren asked on February 16, 2018 21:28
275 views | 3 answers | #15751
I'm collecting some notes from across the site, including the #air-sensors and #particle-sensing pages in one place, and also interested in the latest updates on prices for different particulate air sensors. Thanks!
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Moving some text from the #particle-sensing page by @DavidMack -- thanks, David! Trying to consolidate some scattered info on this across the site but i'm linking back here from each place.
The Speck uses a Syhitech DSM501A for ~$2 in quantity (thanks @chrisbartley !)
The Dustduino Uses a Shenyei PPD42NS available for ~$25.
Here is a technical sheet for a $12.25 particle sensor by Sharp that can be purchased from here. The Sharp product works by detecting IR radiation that is scattered off the particles. The sensor outputs a voltage that is reported to be proportional to the concentration of particulates in the air. I have not seen code for this, but it looks like it would be pretty straight forward to write.
Also note there are drivers for Arduino (see the comments!) + Raspberry Pi are available for the following devices:
ThermoFisher PDR 1500 - #11927
Dylos - #dylos & #11927
Shinyei particle sensor - #shinyei & #11927
DustDuino (using the Shinyei sensor mentioned above)
Just found this on my sunday net random navigation.
Laser PM2.5 Air Quality Sensor For Arduino. £50GBP
At the core there's this sensor SKU:SEN0177
The MiniVol is a few thousand dollars, i think used: https://publiclab.org/minivol but the samples cost a good bit to process (see page)
And the ThermoFisher PDR-1500 is (used) I think ~$1500 -- https://publiclab.org/wiki/pdr-1500
Public Lab has one of each of these, and we're interested in loaning them out, but I don't know that we yet have a huge amount of information about how well they meet specific needs, or in-depth information about what kind of uses their data can be put towards. But please ask questions on those pages to help unpack these devices and what they can do for us!
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