Esp32 wrover cam with mq2 sensor


I need help with my project so I am using Esp32 wrover cam and mq2 sensor. So when the mq2 sensor is activated with gas it should take the photo and send it to the blynk app gallery. However I am have problem with connecting the mq2 sensor to my board. I can not find which pin will work with my sensor.

The board itself is working with camera and it send the photo to the gallery. But when I try to connect my mq2 sensor it brakes because of the pin and I do not know which pin I need to use to make it work together.

Any suggestions or help would be great.

Thank you so much

You should read this link…