Grove - Multichannel Gas Sensor v2 - I2C values

Products & Technology
1

Hello I need support as I can’t find documentation.
I am writing a python script to read the I2C values out of the Multichannel Gas Sensor v2 and I get those values out of address 0x08

byte 1: 193
byte 2: 0
byte 3: 173
byte 4: 115
byte 5: 141
byte 6: 0
byte 7: 71
byte 8: 82

Can someone please help me figure out what they means, are the the idividual sensors values like this:

GM102B NO2: 193
GM302B C2H5CH: 173
GM402B: 115
GM502B VOC: 141
GM702B CO: 71
GM802B: 82

Do they all represent values in ppm or do I need to apply some mathematical conversion?

Thank you

1 Like
2

Hello,
Have you finished the python script yet?
I am searching for one because there’re only c libraries out for this module.

Thank you

3

I am also trying to port it to python and I can’t find any documentation on the I2C addresses. Did any one have any luck porting it to python or at least a proper documentation on the I2C registers?

Thanks!