Simple web enable air quality sensor

Description

Most PM 2.5 air sensors cost thousands of dollars so most people do not have access to one. Particulate matter is a major health concern that causes thousands of premature deaths each year. Most people spend a majority of the year indoors and need a way to determine the quality of their indoor air. This is especially important in rural ares where people heat and cook with wood. The PM 2.5 levels in their homes can become very elevated without them even knowing it.

This sensor allows people to become educated about the quality of the air in their homes using a simple LED color indicator. If the air quality becomes poor they can take steps to improve the air quality by opening windows or turning on air filters.

The hopes is that these will also be able to post data to a central database to help citizens and researchers learn more about the local air quality.

Finally this project was designed to be usable in the classroom as a STEM education tool.

Files

Calibration Data.xlsx

Data collected with a Dusttrak II and my air sensor.

sheet - 71.96 kB - 06/06/2016 at 16:43

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Components

1 × Particle Photon

1 × RGB common anode LED

1 × 10K resistor

1 × Shinyei PPD42

1 × 6" female to female jumper wire

Project Logs

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LED removal
Brock Hammill • 06/15/2016 at 02:34 • 0 comments

I am looking into using the LED on the Photon to indicate air quality. You can override the RGB light on the board to light whatever color you want. Might give it a go. This would make the external LED not needed.
RETIGO
Brock Hammill • 06/09/2016 at 17:08 • 0 comments

https://www.epa.gov/hesc/real-time-geospatial-data-viewer-retigo
I was just informed about the EPA website that can map individual project air data. It is called real time but it looks like you have to manually upload your data spreadsheet to have it graph it. I will keep looking into it.
thingspeak
Brock Hammill • 06/09/2016 at 17:03 • 0 comments

I just got the code working to feed the data to thingspeak.com. I am hoping that might provide a better solution for mapping data.
Database?
Brock Hammill • 06/06/2016 at 17:37 • 1 comment

I am currently looking for a database to host and display published data.

View all 4 project logs

Build Instructions

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Step 1

Further information can be found at https://airquality406.wordpress.com/

Step 2

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Simple web enable air quality sensor

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Files

Calibration Data.xlsx

Components

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LED removal

RETIGO

thingspeak

Database?

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