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Dependents:   MiCS6814_GasSensor_Hello grove_multichannel_GasSensor

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MiCS6814_GasSensor Class Reference
Public Member Functions

MiCS6814_GasSensor Class Reference

Interface for controlling MiCS-6814 Multichannel Gas Sensor. More...

#include <MiCS6814_GasSensor.h>

Public Member Functions

 MiCS6814_GasSensor (PinName sda, PinName scl, char slave_adr=SLAVE_ADDRESS_MiCS6814)
 Create a MiCS6814_GasSensor instance the sensor is connected to specified I2C pins with specified address.
 MiCS6814_GasSensor (I2C &i2c_obj, char slave_adr=SLAVE_ADDRESS_MiCS6814)
 Create a MiCS6814_GasSensor instance the sensor is connected to specified I2C pins with specified address.
virtual ~MiCS6814_GasSensor ()
 Destructor of MiCS6814_GasSensor.
void initialize (void)
 Initialize MiCS6814_GasSensor Read firmware version from sensor and power on heater.
float getGas (const enum GAS_TYPE gas_type)
 Return a specific measured value, unit: ppm.

Detailed Description

Interface for controlling MiCS-6814 Multichannel Gas Sensor. 

 #include "mbed.h"
 #include "MiCS6814_GasSensor.h"

 Serial pc(USBTX, USBRX);

 #if defined(TARGET_LPC1768)
 MiCS6814_GasSensor sensor(p28, p27);
 #else
 MiCS6814_GasSensor sensor(I2C_SDA, I2C_SCL);
 #endif

 int main() {

     while(1) {
         pc.printf("NH3: %.2f ppm, CO: %.2f ppm, NO2: %.2f ppm, C3H8: %.2f ppm \r\n", sensor.getGas(NH3), sensor.getGas(CO), sensor.getGas(NO2), sensor.getGas(C3H8));
         pc.printf("C4H10: %.2f ppm, CH4: %.2f ppm, H2: %.2f ppm, C2H5OH: %.2f ppm \r\n", sensor.getGas(C4H10), sensor.getGas(CH4), sensor.getGas(H2), sensor.getGas(C2H5OH));
         wait(1);
     }
 }

A mbed component library to measure concentration value for 8 type of gases by using MiCS6814 - Multichannel Gas Sensor (seeed)

Definition at line 125 of file MiCS6814_GasSensor.h.

Constructor & Destructor Documentation

MiCS6814_GasSensor ( PinName  sda,
PinName  scl,
char  slave_adr = SLAVE_ADDRESS_MiCS6814 
)

Create a MiCS6814_GasSensor instance the sensor is connected to specified I2C pins with specified address.

Parameters:
[in]sdaI2C-bus SDA pin
[in]sclI2C-bus SCL pin
[in]slave_adr(option) I2C-bus address (default: 0x04<<1)

Definition at line 33 of file MiCS6814_GasSensor.cpp.

MiCS6814_GasSensor ( I2C &  i2c_obj,
char  slave_adr = SLAVE_ADDRESS_MiCS6814 
)

Create a MiCS6814_GasSensor instance the sensor is connected to specified I2C pins with specified address.

Parameters:
[in]i2c_objI2C object (instance)
[in]slave_adr(option) I2C-bus address (default: 0x04<<1)

Definition at line 42 of file MiCS6814_GasSensor.cpp.

~MiCS6814_GasSensor (  ) [virtual]

Destructor of MiCS6814_GasSensor.

Definition at line 51 of file MiCS6814_GasSensor.cpp.

Member Function Documentation

float getGas ( const enum GAS_TYPE  gas_type )

Return a specific measured value, unit: ppm.

Parameters:
[in]gas_typeone of gas type defined at enum GAS_TYPE
Returns:
the measured concentration of specific gas type (ppm)

Definition at line 146 of file MiCS6814_GasSensor.cpp.

void initialize ( void   )

Initialize MiCS6814_GasSensor Read firmware version from sensor and power on heater.

Definition at line 192 of file MiCS6814_GasSensor.cpp.

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