Difference between revisions of "Matrix - MQ-2 Gas Sensor"
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==Introduction== | ==Introduction== | ||
[[File:MQ-2 Gas Sensor_1.jpg|thumb|MQ-2 烟雾传感器]] | [[File:MQ-2 Gas Sensor_1.jpg|thumb|MQ-2 烟雾传感器]] | ||
| − | * | + | * The Matrix-MQ-2_Gas_Sensor uses the MQ-2 gas sensor which is sensitive to LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke and etc and is used to detect multiple gas leakage. This makes it suitable in various applications of gas leak detection. |
| − | * | + | * The output voltage of the module is positively proportional to the gas concentration. |
==Features== | ==Features== | ||
Revision as of 07:43, 24 February 2016
Contents
1 Introduction
- The Matrix-MQ-2_Gas_Sensor uses the MQ-2 gas sensor which is sensitive to LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke and etc and is used to detect multiple gas leakage. This makes it suitable in various applications of gas leak detection.
- The output voltage of the module is positively proportional to the gas concentration.
2 Features
- Standard 3 Pin Interface
- PCB Dimension(mm): 24 x 32
- Pin Description:
| Pin | Description |
| S | GPIO |
| V | Supply Voltage 5V |
| G | Ground |
3 Basic Device Operation
- MQ-2_Gas_Sensor模块的主要器件是一个具有快速响应和恢复特性的MQ-2气体传感器，传感器所使用的气敏材料是在清洁空气中电导率较低的二氧化锡(SnO2)，当传感器所处环境中存在可燃气体时，
传感器的电导率随空气中可燃气体浓度的增加而增大，传感器将电导率的变化转换为与该气体浓度相对应的模拟信号输出，灵敏度可以通过电位计进行调节。
4 Download Matrix Source Code
5 Update Log
5.1 Feb-24-2016
- Added Sections 1, 2, 3 and 4
