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Troubleshooting • I2C Sensor returning obviously incorrect readings.

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Hello all,

I have this air quality sensor (https://github.com/DFRobot/DFRobot_AirQ ... ree/master) which i am using with a raspberry pi zero via I2C. For context this has worked in the past until it stopped working two weeks ago due to a network issue - at this point i reinstalled the OS and software. since then its been sending obviously incorrect readings (far too high, it wouldn't be safe to breathe).

Here's a list of things i've tried...
- Clean install of OS (raspberry pi os lite)
- Using example code provided by manufacturer & increasing time between readings
- Using a different cable & checking connections (i2cdetect shows the sensor fine)
- Using a new Pi zero
- Using a new sensor

I'm at a bit of a loss as to the issue now - I do wonder if its a dependency problem, maybe an update that was released since the 15th that I installed when trying to fix the network issue, but no idea how to go about checking this?

I would appreciate any support/tips or advice on what it could be.

Thank you for your time :)

Statistics: Posted by sidilleth — Wed Jan 31, 2024 9:43 am — Replies 0 — Views 40



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