Ramana R / Mbed 2 deprecated MQ9

This is a library for the MQ9 gas sensor module.

Dependencies:   mbed

MQ9.h@2:c366191f8865, 2018-05-01 (annotated)

Committer:
NXP_Rr
Date:
Tue May 01 20:36:47 2018 +0000
Revision:
2:c366191f8865
Parent:
1:9a7fb445a7ad 
Added documentation.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NXP_Rr 0:7712450a546d 1 #ifndef _____MQ9_____
NXP_Rr 0:7712450a546d 2 #define _____MQ9_____
NXP_Rr 0:7712450a546d 3
NXP_Rr 0:7712450a546d 4 #include "mbed.h"
NXP_Rr 0:7712450a546d 5
NXP_Rr 0:7712450a546d 6 #define MQ9_STATUS_PASS 0
NXP_Rr 0:7712450a546d 7 #define MQ9_STATUS_FAIL -1
NXP_Rr 0:7712450a546d 8
NXP_Rr 0:7712450a546d 9 /** Class for the MQ9 sensor.
NXP_Rr 0:7712450a546d 10 * This library is a modified version of the MQ2 library for Arduino
NXP_Rr 0:7712450a546d 11 * Example:
NXP_Rr 0:7712450a546d 12 *
NXP_Rr 0:7712450a546d 13 */
NXP_Rr 0:7712450a546d 14 class MQ9
NXP_Rr 0:7712450a546d 15 {
NXP_Rr 0:7712450a546d 16 public:
NXP_Rr 0:7712450a546d 17 /// Construct the sensor object and setup the sensor pins
NXP_Rr 0:7712450a546d 18 MQ9(PinName const &p);
NXP_Rr 0:7712450a546d 19
NXP_Rr 0:7712450a546d 20 /// Update the gas concentrations from the sensor.
NXP_Rr 0:7712450a546d 21 int read();
NXP_Rr 0:7712450a546d 22
NXP_Rr 2:c366191f8865 23 /** Get concentration of LPG
NXP_Rr 2:c366191f8865 24 * Returns the concentration of LPG as a floating number.
NXP_Rr 2:c366191f8865 25 */
NXP_Rr 0:7712450a546d 26 float getLPG_ppm();
NXP_Rr 0:7712450a546d 27
NXP_Rr 2:c366191f8865 28 /** Get concentration of CO,
NXP_Rr 2:c366191f8865 29 * Returns the concentration of CO as a floating number.
NXP_Rr 2:c366191f8865 30 */
NXP_Rr 0:7712450a546d 31 float getCO_ppm();
NXP_Rr 0:7712450a546d 32
NXP_Rr 2:c366191f8865 33 /** Get concentration of Methane
NXP_Rr 2:c366191f8865 34 * Returns the concentration of Methane as a floating number.
NXP_Rr 2:c366191f8865 35 */
NXP_Rr 0:7712450a546d 36 float getMethane_ppm();
NXP_Rr 0:7712450a546d 37
NXP_Rr 0:7712450a546d 38 private:
NXP_Rr 0:7712450a546d 39 /// Concentration of LPG
NXP_Rr 0:7712450a546d 40 float _LPG_ppm;
NXP_Rr 0:7712450a546d 41 /// Concentration of CO
NXP_Rr 0:7712450a546d 42 float _CO_ppm;
NXP_Rr 0:7712450a546d 43 /// Concentration of Methane
NXP_Rr 0:7712450a546d 44 float _Methane_ppm;
NXP_Rr 0:7712450a546d 45
NXP_Rr 0:7712450a546d 46 /// pin to read the sensor information
NXP_Rr 0:7712450a546d 47 AnalogIn _pin;
NXP_Rr 0:7712450a546d 48 };
NXP_Rr 0:7712450a546d 49
NXP_Rr 0:7712450a546d 50 #endif