Multichannel Gas Sensor Not Working

[devvjhaveri]

Hey! I was working on the smart nose project, however, the multichannel gas sensor v2 is not recording any change in compounds when I place alcohol near the sensor. I have done the warming - up process and even tried to reset the Wio Microcontroller, but nothing is working. What should I do? It always shows ambient (99%) and does not show any gas levels.

[kartben]

Looks like you connected to the wrong port. Should be the other one, on the left.