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Smoke Sensor with Arduino Uno: MQ-2 wiring, setup and code

Smoke Sensor with Arduino Uno: MQ-2 wiring, setup and code | tecno4 | Scoop.it
From peppe8o.com - January 28, 2022 3:06 AM
When you need to monitor a fire initialization, Smoke Sensor is the best way to detect the percentage of carbon monoxide (CO) in parts per million (PPM). The smoke sensor gives an analog voltage which can be monitored by Analog Pin of Arduino Uno
In this tutorial, I’ll show you how to interface an MQ-2 Smoke sensor with Arduino Uno. Results of the smoke sensor are displayed over the serial monitor.
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Arduino lesson – MQ-2 Smoke Sensor 

Arduino lesson – MQ-2 Smoke Sensor  | tecno4 | Scoop.it
From osoyoo.com - March 20, 2019 12:33 PM

In this project, we will go over how to build a smoke sensor circuit with an arduino board.
The smoke sensor we will use is the MQ-2. This is a sensor that is not only sensitive to smoke, but also to flammable gas.
The MQ-2 smoke sensor reports smoke by the voltage level that it outputs. The more smoke there is, the greater the voltage that it outputs. Conversely, the less smoke that it is exposed to, the less voltage it outputs.

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