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Seeed-Studio / Mutichannel_Gas_Sensor

This Arduino library is used for driving "Xadow - Mutichannel Gas Sensor" and "Grove - Mutichanel Gas Sensor"
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Only NO2 channel seems to work #6

Open ericltongfb opened 8 years ago

ericltongfb commented 8 years ago

After doing testing with various gases and various environments, I usually get this output:

The concentration of NH3 is 0.99 ppm The concentration of CO is 1.20 ppm The concentration of NO2 is 1.18 ppm The concentration of C3H8 is 1000.04 ppm The concentration of C4H10 is 999.98 ppm The concentration of CH4 is 2991.14 ppm The concentration of H2 is 1.09 ppm The concentration of C2H5OH is 1.40 ppm

It seems that other than the NO2 output, the rest of the output stays as the default values and does not vary with increase or decrease of concentration of those gases. Is this a hardware issue or a firmware issue?

empierre commented 7 years ago

No answer but only close ?

ghost commented 7 years ago

Hello, sorry just made a mistake to close all of the issue of this library. Please try calibrate the sensor in the fresh air again. Are you sure the are around you contains the gas that didn't active? Thanks.