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

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christophe
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The Air Quality Index (IAQ) is fairly easy to determine using an Arduino (or ESP32, ESP8266) and a DSM501 sensor. The DSM501A is a detector capable of measuring the presence of fine particles in suspension in the atmosphere according to PM2.5 and PM10 standards.

The DSM501A is a very economical sensor (about โ‚ฌ 4.80)…

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 Tomasz Wostal
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Good job mate ๐Ÿ™‚ Thanks!

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christopher 1
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Thank you very much Tomasz. I hope the code has been useful for your project. Do not hesitate to share your experience with us. See you soon

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 Ibnu Adi Perdana
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firstly, i want say thank you very much cause i've tired to search reference this sensor. ๐Ÿ˜€
result data from this system already compared with the standard tool for measurement pm10/2.5?

i hope you can reply this soon ๐Ÿ˜€

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christopher 1
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Hello Ibnu and thank you very much. I'm sorry but I do not have any lab equipment that allows me to check the validity of the measurements. See you soon.

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 Ibnu Adi Perdana
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me too, I don't have any lab equipment. But, base on the calculation in the program, how much error do you think if compare with lab equipment? Is it close to real value?

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christopher 1
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I can only refer to the technical documentation to give you an answer. Yes it is a good sensor. I think we should rather consider the value as an indicator of air quality (very bad, bad, average, good, very good). I have a doubt about the PM1 value that varies a lot too much. For the measurement to be correct, it is necessary to mix the air with a small fan for example. Do not measure during air renewal. See you soon.

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 Ibnu Adi Perdana
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long time no see ๐Ÿ˜€
how do you test this tool to detect pm10?

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christopher 1
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I'm sorry but I did not understand your problem. You can tell me a little more. thank you very much

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 Ibnu Adi Perdana
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/sorry about my bad english , have no WA ?

i mean, how to use this sensor? if lm 35 temperature sensor, we use to detect the temperatur in the somewhere

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 Ang Xian Jia
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Why am i getting strange output? I just copy the code into Arduino.

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 Ang Xian Jia
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Why am i getting strange output? I just copy the code into Arduino and change the pin to 9 and 10. 8b3fc2ec8ccf425c8240491c5a324c5a92cff756f686723a3f26f706f092af05

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