Description
The MQ-7 carbon monoxide sensor module allows for the sensing of CO concentrations in the air. This module can detect CO gas concentrations from anywhere between 20 and 2000ppm.
The sensor is highly sensitive and has a quick response time. It uses analogue resistance as an output and is extremely easy to connect with the use of Arduino.
Please note: This module has an adjustable sensitivity and is not calibrated.
Features:
- Sensitive for carbon monoxide
- 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 |
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