I have an MQ-2 sensor connected to Arduino Nano and i read values with analog A0 pin. Arduino 5V goes to the VCC pin and the Arduino Ground to the GND pin on the sensor. When i hold an butan torch under it i can se the values in serial monitor changes from around 100 to 5-600. But it does not sea…

Name: DIY Smoke & Gas Detecting Device | MQ-2 gas sensor Module
Uploaded: 2021-05-02T11:46:37Z
Description: [DIY Smoke & Gas Detecting Device | MQ-2 gas sensor Module]

MQ-2 sensor does not detect smoke

Other Hardware General Electronics

Bjerknez May 2, 2021, 11:46am 3

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MQ-2 sensor does not detect smoke

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