PMSA003I reading 0

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Sky737
 
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Joined: Fri Apr 29, 2022 6:05 pm

PMSA003I reading 0

Post by Sky737 »

Hi, I purchased a PMSA003I Air Quality module but upon powering it on on and testing the default code the module slowly leveling its values at 0. The air outside my home definitely has higher than 0 pm2.5 concentrations. It's also worth noting that the module does read values if it is exposed to smoke. It is only reading these 0's in ambient air inside and outside. I was wondering if anyone had seen this problem before or if it is a defective product. Thanks!
Screen Shot 2022-09-03 at 12.31.27 PM.png
Screen Shot 2022-09-03 at 12.31.27 PM.png (65.32 KiB) Viewed 33 times
Screen Shot 2022-09-22 at 5.14.45 PM.png
Screen Shot 2022-09-22 at 5.14.45 PM.png (51.24 KiB) Viewed 33 times

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mikeysklar
 
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Re: PMSA003I reading 0

Post by mikeysklar »

I’ve seen this issue when the power to the PMSA003l needs more power.

I see you are running the Arduino IDE.

Which model of controller board are you using?

Are you connecting with the i2c cable or manually wired?

Are you using a powered USB HUB port or one capable of 2A?

Can you post a photo of your setup?

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Sky737
 
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Re: PMSA003I reading 0

Post by Sky737 »

I am using the STMF405 board and it is wired through the STEMMA QT port on the board. Here is a photo...

https://ibb.co/bvpjC8G

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mikeysklar
 
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Re: PMSA003I reading 0

Post by mikeysklar »

Thank you for the photo.

It does not look like any of your jumper wire connections are soldered.

If you want to remove those so you can just focus on the i2c PMSA003l connection that would be helpful.

What is the battery (LiPo mah) capacity connected to the JST?

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