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Calculate the Air Quality Index (IAQ, IQA) with a DSM501 on Arduino or ESP8266

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Posts: 3
 Ang Xian Jia
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Joined: 3 years ago

1) How can i shorten the measurement total time? I want to get a quick result of AQI.
2) Will the AQI result print on the serial monitor of Arduino IDE?

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 earlthesquirrel
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Question -- For US/China (Lines 86 and 87) you call getAQI both times with a sensor value of 0. I think on 87 you meant for the value to be 1. Correct?

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 Sergey S
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First of all, thanks for great article and sample of code. If I understand correctly, DSM501A can detect dust particles of PM 1.0 (1 μm) and PM 2.5 (2.5 μm), it can't detect PM 10 (10 μm). But you use sensor results for PM 1.0 in air quality calculations for PM 10. Is it correct or wrong?

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 Peter
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Posts: 2

I also asked myself the same question. PM10 is calculated, but the sensor data provides values for PM1.0. How can this be explained?

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 Peter
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I also asked myself the same question. PM10 is calculated, but the sensor data provides values for PM1.0. How can this be explained?

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Posts: 1
 Jatu Tung
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Hi,

Please advise me. After I test code on Arduino IDE. The output from Serial Monitor is below.

Concentrations => PM2.5: 0.05 | PM10: 0.21
AQIs => PM25: 1 | PM10: 1
| AQI: 1

| Message: Excellent

I want to know, below values
Concentrations => PM2.5: 0.05 | PM10: 0.21
are concentration of particles in suspension in the air in mg/m3, right?

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