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Author Topic: Weather Undergroundís Next Frontier: Air Quality  (Read 4389 times)

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Offline Weather Display

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #150 on: September 10, 2017, 07:06:05 PM »
I have added some max/min/av data now in the latest update

also the AQI number now has a font with a shadow so when yellow colour its easier to read
« Last Edit: September 11, 2017, 08:17:07 AM by Weather Display »

Offline Weather Display

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #151 on: September 16, 2017, 08:48:01 PM »
I have added more to the av/ext data in the latest .zip update now

Offline davest123

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #152 on: September 17, 2017, 05:26:59 PM »
Brian, I've noticed that if the AQI is a value from 50.00 through 50.99, the description tag %purpleairaqidescription% is blank.

Using ZIP update Version on 16 September 2017 - 22:47:30.

Offline Weather Display

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #153 on: September 17, 2017, 07:43:25 PM »
fixed in the latest .zip update

Offline mihec

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #154 on: September 25, 2017, 11:49:44 AM »
Refreshing the topic. I had installed a home-made air quality sensor using the sensor from Sharp (GP2Y1010AU0F/GP2Y1010AU0F posted in this forum) and a MQ131 sensor (for ozone). I've been logging for a while now but don't get any exciting result. I do readouts either every 1 second or do a 10-sec average and log to a file.

I've noticed a difference between two sensors: GP2Y1010AU0F has an offset of about 0.4-0.5 V which is what the specifications say. The GP2Y1010AU0F has no offset (or 0.04-0.05 V).
I've attached a log for one day from both sensors that are installed side by side.

Either our air is that clean or something does not work OK. Can someone post a log for one day from the PurpleAir sensor? I wonder if the dynamics is more interesting there.
PS: I made a smoke from a candle and both sensors reacted immediately. So they should be connected alright. ??

Thanks.

Offline niko

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #155 on: September 25, 2017, 05:18:38 PM »
Smoke is a good test. You may want to check the sensitivity specifications for those sensors to calibrate your expectations for general air quality sensing.

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #156 on: September 29, 2017, 02:22:12 AM »
I have added some more custom tags (max/min average etc) to the latest .zip update

Offline Harry

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Re: Weather Undergroundís Next Frontier: Air Quality
« Reply #157 on: October 12, 2017, 09:57:53 AM »
With the Napa wildfires, I have to say that the Purple Air sensor was a good investment.  The air quality around here has really sucked the last several days.

https://www.purpleair.com/map?&zoom=9&lat=37.63535527254023&lng=-122.14039448730466&clustersize=30&inc=317376|317379&orderby=L&latr=0.8417428274285896&lngr=2.197265625