Difference between revisions of "Template:MQ-7 Gas Sensor Spec"
From Waveshare Wiki
(Created page with "==Features== *Sensitive for carbon monoxide *Output voltage boosts along with the concentration of the measured gases increases *Fast response and recovery *Adjustable sensiti...") |
|||
| Line 1: | Line 1: | ||
| + | =Overview= | ||
| + | The gas sensing material used in the MQ-7 gas sensor is tin dioxide (SnO2), which has low conductivity in clean air. When carbon monoxide gas exists in the environment where the sensor is located, the conductivity of the sensor increases with the increase of carbon monoxide gas concentration in the air. | ||
==Features== | ==Features== | ||
*Sensitive for carbon monoxide | *Sensitive for carbon monoxide | ||
| Line 5: | Line 7: | ||
*Adjustable sensitivity | *Adjustable sensitivity | ||
*Signal output indicator | *Signal output indicator | ||
| + | |||
==Specification== | ==Specification== | ||
*Power: 2.5V ~ 5.0V | *Power: 2.5V ~ 5.0V | ||
Revision as of 02:16, 19 July 2022
Overview
The gas sensing material used in the MQ-7 gas sensor is tin dioxide (SnO2), which has low conductivity in clean air. When carbon monoxide gas exists in the environment where the sensor is located, the conductivity of the sensor increases with the increase of carbon monoxide gas concentration in the air.
Features
- Sensitive for carbon monoxide
- Output voltage boosts along with the concentration of the measured gases increases
- Fast response and recovery
- Adjustable sensitivity
- Signal output indicator
Specification
- Power: 2.5V ~ 5.0V
- Dimension: 40.0mm * 21.0mm
- Mounting holes size: 2.0mm
Pinouts
| PIN | Description |
| DOUT | Digital data output |
| AOUT | Analog data output |
| GND | Ground |
| VCC | Power input (2.5V ~ 5.0V) |