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MQ4 Gas Sensor Pinout Configuration
For MQ-4 Sensor Module
Pin Name | Description |
VCC | This pin powers the module, typically the operating voltage is +5V |
GND | Used to connect the module to system ground |
Digital Out (DO) | You can also use this sensor to get digital output from this pin, by setting a threshold value using the potentiometer |
Analog Out (AO) | This pin outputs 0-5V analog voltage based on the intensity of the gas |
For MQ-4 Sensor
Pin No. | Pin Name | Description |
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 Supply voltage. |
3 | B-Pins | A pins and B pins are interchangeable. One pin will act as output while the other will be pulled to ground. |
MQ-4 Gas Sensor Features
- Good sensitivity to Combustible gas in wide range
- High sensitivity to CH4, Natural gas.
- Small sensitivity to alcohol, smoke.
- Fast response Stable and long life
- Simple drive circuit
MQ4 Gas Sensor Pinout Configuration
For MQ-4 Sensor Module
Pin Name | Description |
VCC | This pin powers the module, typically the operating voltage is +5V |
GND | Used to connect the module to system ground |
Digital Out (DO) | You can also use this sensor to get digital output from this pin, by setting a threshold value using the potentiometer |
Analog Out (AO) | This pin outputs 0-5V analog voltage based on the intensity of the gas |
For MQ-4 Sensor
Pin No. | Pin Name | Description |
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 Supply voltage. |
3 | B-Pins | A pins and B pins are interchangeable. One pin will act as output while the other will be pulled to ground. |
MQ-4 Gas Sensor Features
- Good sensitivity to Combustible gas in wide range
- High sensitivity to CH4, Natural gas.
- Small sensitivity to alcohol, smoke.
- Fast response Stable and long life
- Simple drive circuit
Watch this video it will give you a clear idea about this product.
