MQ-2 SMOKE/GAS SENSOR Detector Module detect gases in the concentration of range 200 to 10000ppm for Electronic school science Projects

Features:

Sensitive for LPG, propane, hydrogen

Output voltage boosts along with the concentration of the measured gases increases

Fast response and recovery

Features boost circuit

Adjustable sensitivity

Signal output indicator

Pin Configuration:

Pin No: Pin Name: Description

For Module

1 Vcc This pin powers the module, typically the operating voltage is +5V

2 Ground Used to connect the module to system ground

3 Digital Out You can also use this sensor to get digital output from this pin, by setting a threshold value using the potentiometer

4 Analog Out This pin outputs 0-5V analog voltage based on the intensity of the gas

For Sensor

1 H -Pins Out of the two H pins, one pin is connected to supply and the other to ground

2 A-Pins The A pins and B pins are interchangeable. These pins will be tied to the Supply voltage.

3 B-Pins The A pins and B pins are interchangeable. One pin will act as output while the other will be pulled to ground.