Search found 3 matches

by ap146
Fri May 24, 2019 3:44 pm
Forum: Grove
Topic: Oxygen Sensor Question
Replies: 7
Views: 1686

Re: Oxygen Sensor Question

Hi, I'm run calibration code and the O2 value is Ok. But why, when I'm put on balloon with exhale air at the sensor, value don't changed? When sample code runs, values changing, even when blowing on sensor, but it's very low. I saw the page http://wiki.seeedstudio.com/Grove-Gas_Sensor-O2/ was edited...
by ap146
Fri May 17, 2019 3:45 am
Forum: Grove
Topic: Oxygen Sensor Question
Replies: 7
Views: 1686

Re: Oxygen Sensor Question

Hi, Thanks for reply, but I'm already tryed this calibration code. When it's run, serial monitor shows right value, but sensor, for some reason, don't reacting when I blow at it. If, after running of calibration code, I'm try to use main sketch, low values comes back. Can you advise me what must to ...
by ap146
Mon May 13, 2019 8:09 pm
Forum: Grove
Topic: Oxygen Sensor Question
Replies: 7
Views: 1686

Re: Oxygen Sensor Question

Hi,

I've got same problem. Connected sensor to Arduino Uno without Base Shild, and it show 8-9% O2 in the air and Vout amount 0,85.
When blowing value changing, but it still wrong.
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