upm  0.4.1
Sensor/Actuator repository for libmraa (v0.8.0)
Public Member Functions | List of all members

API for the MQ9 Gas Sensor. More...

Detailed Description

The Grove MQ9 Gas Sensor module is useful for gas leakage detection (in home and industry). It can detect carbon monoxide, coal gas, and liquefied gas. Its sensitivity is 10-1,000 ppm CO, and 100-10,000 ppm Gas.

mq3-9.jpeg

Public Member Functions

synchronized void delete ()
 
 MQ9 (int gasPin)
 
String name ()
 
- Public Member Functions inherited from Gas
synchronized void delete ()
 
 Gas (int gasPin)
 
int getSampledWindow (long freqMS, short[] numberOfSamples)
 
int findThreshold (thresholdContext ctx, long threshold, short[] buffer)
 
int getSampledData (thresholdContext ctx)
 
int getSample ()
 
void printGraph (thresholdContext ctx, short resolution)
 

Constructor & Destructor Documentation

MQ9 ( int  gasPin)

MQ9 constructor

Parameters
gasPinAnalog pin where the sensor is connected

Member Function Documentation

String name ( )

Returns the name of the sensor

Inheritance diagram for MQ9:
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Collaboration diagram for MQ9:
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The documentation for this class was generated from the following file: