hello I am trying to do a mini project and I had a little problem with the gas sensor MQ5
This sensor can capture more gas but my problem how to know the type of gas it detect how ???
thank you : O : O : O : O : O : O
They are sensitive for a few gasses, but they can not detect which gas it is.
It is an electrical-chemical sensor that reacts to certain gasses.
This is a basic introduction : Arduino Playground - MQGasSensors
Did you read the datasheet of the MQ-5 ? In the datasheet you can read which gasses it detects.