MIX8410 - Unable to get working

Community
#1

I have connected the sensor to ADC1-CH6 - GPIO34 on a DEVKit 32, loaded the sample code and am only seeing the maximum readings.

I tried to test using another handheld O2 sensor Smart Sensor AR8100, I put them both in a vacuum bag and then sucked out the air with a vacuum. The Smart Sensor showed reduced Oxygen, but the MIX8410 was still showing 21%!

Any tips on what to look for would be appreciated.

Thanks,
Stuart/

#2

Decided to strip back my code to something that simply does an analogue read of the pin and displays it and the ADC level is always 4095.

I put my meter on the signal ping and it reads 3.295V.

Is the sensor faulty?

#3

Just a thought do you need to remove the sticker on the sensor?