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.
Applications
Gas leakage detector
Package Includes:
1 x MQ-2 Gas sensor module
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