Multichannel gas sensor - problems

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crisod
Pre-kindergarten
Pre-kindergarten
Posts: 1
Joined: Thu Jul 25, 2019 4:20 pm

Multichannel gas sensor - problems

Post by crisod » Thu Jul 25, 2019 4:25 pm

I run this sensor on the raspberry pi,
and i see some problems.

1. Problem.
After some hours , sometimes 1-3 days when I get normal value from sensor
a get information

The old V1 firmware is not supported by this library
Can't obtain version!
After power of/on to rasberry I get normal value.

2.Problem
after some times a get that same informarmation by 23 hours, that same value

2019-06-29 08:00:00 0 4.46 0.15 0 0 0 0 0
................
................
2019-06-30 09:15:00 0 4.46 0.15 0 0 0 0 0

with 5 min time interval , then a power off raspberry pi and than i get normal value .

3. Problem

sometimes a get very high value for some gasses, Propane,Butane,Metan ,2070.37,1337.81,3032.14
when a run calibration than i get normal value.

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