MICSV89 Class Reference

API for the MICS-VZ89 Gas Sensor. More...

Detailed Description

• ID: micsv89
• Name: Low-power Air Quality Sensor
• Category: gaseous
• Manufacturer: generic
• Connection: i2c
• Link: http://sgx.cdistore.com/datasheets/e2v/MiCS-VZ-86%20and%20VZ-89%20rev%204.pdf
• Link: http://www.sgxsensortech.com/content/uploads/2015/01/MICS-VZ-89-I2C-specs-rev-A.pdf

The MiCS-VZ-86/89 combines state-of-the-art MOS sensor technology with intelligent detection algorithms to monitor VOCs and CO2 equivalent variations in confined spaces.

The MICSV89 comes in 4 variants, PWM and I2C in 3.3 volts and 5 volts. This library only implements the I2c version of the device.

Device output is not valid until a warm up of 15 minutes of operation.

    upm::MICSV89 sensor(6);

    while (running) {
        sensor.update();
        while (!sensor.valid())
            ;
        cout << "co2: " << sensor.co2equ() << endl;
        cout << "short: " << sensor.vocshort() << endl;
        cout << "tvoc: " << sensor.tvoc() << endl;
        cout << "resistor: " << sensor.resistor() << endl;
        cout << "****************************" << endl;
        upm_delay(5);
    }

Public Member Functions
	MICSV89 (int bus, uint8_t address=0x70)
	~MICSV89 ()
std::string	name ()
float	co2equ ()
int	vocshort ()
float	tvoc ()
float	resistor ()
void	update ()
bool	valid ()

Constructor & Destructor Documentation

MICSV89	(	int	bus,
		uint8_t	address = 0x70
	)

MICSV89 constructor

Parameters

bus	i2c bus the sensor is attached to.
address	Device address. Default is 0x70.

~MICSV89

(

)

MICSV89 destructor

Member Function Documentation

std::string name ( )

inline

Returns the name of the sensor

float co2equ

(

)

Returns the CO2 equivalent value.

int vocshort

(

)

Returns VOC Short value.

float tvoc

(

)

Returns Total VOC.

float resistor

(

)

Returns resistor value.

void update

(

void

)

Performs a write/read cycle.

bool valid ( )

inline

Returns true if a valid write/read cycle has been completed. At startup and during write/read cycle will be false.

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The documentation for this class was generated from the following files:

• src/micsv89/micsv89.hpp
• src/micsv89/micsv89.cxx