MQ-2 Gas Sensor for Arduino

hello guys in this video you will see how to interface mq2 sensor with audio so let's get started the components where our arena would add MQ to sensor and a breadboard the few jumper wires and n 16 by 2 I square C LCD display now we will talk something about this empty two sensor here this is actual sensor and here you can see the circuitry over here these are the four pins the first pan is the analog output and second one is the digital output and the third one is the ground and fourth one is the VCC it actually operates with the 5 volts power supply you can take either analog or digital output from this sensor and welcoming to this sensor it is a gas module and it is suitable for detecting hydrogen LPG methane carbon monoxide alcohol smoke and propane it has high sensitivity and fast response time measurements can be taken as soon as possible the sensitivity of the sensor can be adju