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by memorekt
Tue Apr 05, 2022 4:08 pm
Forum: Hardware
Topic: mq2 gas sensor
Replies: 3
Views: 4202

mq2 gas sensor

Hello all, I am using an example sketch (adc1_example_main.c) from idf framework. I am using `ADC_CHANNEL_0` (not channel 6 like in sketch) which I presume corresponds to the "VP" pin on the esp32 wroom. I am trying to read the analog output from the mq2 sensor but nothing changes in terms of readin...