MQ2Sensor Class Reference

Class for the MQ-2 gas sensor. More...

#include <mq2.h>

Public Member Functions
	MQ2Sensor (uint8_t pin, const char *board="ESP-32", float voltageResolution=3.3, uint8_t adcBitResolution=12, const char *type="MQ-2")
	Construct a new MQ2Sensor object.
void	update ()
	Updates the MQ2 sensor.
int	getValue ()
	Gets the value from the MQ2 sensor.
void	begin ()
	Initializes the MQ2 sensor.
void	calibrate ()
	Calibrates the MQ2 sensor.

Detailed Description

Class for the MQ-2 gas sensor.

Constructor & Destructor Documentation

MQ2Sensor()

MQ2Sensor::MQ2Sensor	(	uint8_t	pin,
		const char *	board = "ESP-32",
		float	voltageResolution = 3.3,
		uint8_t	adcBitResolution = 12,
		const char *	type = "MQ-2" )

Construct a new MQ2Sensor object.

Parameters

pin	Pin number for the sensor
board	Board type (default is "ESP-32")
voltageResolution	Voltage resolution (default is 3.3)
adcBitResolution	ADC bit resolution (default is 12)
type	Sensor type (default is "MQ-2")

Member Function Documentation

begin()

void MQ2Sensor::begin

(

)

Initializes the MQ2 sensor.

Initializes the MQ2 sensor with the given parameters.

calibrate()

void MQ2Sensor::calibrate

(

)

Calibrates the MQ2 sensor.

Calibrates the MQ2 sensor by averaging 10 readings in clean air.

getValue()

int MQ2Sensor::getValue

(

)

Gets the value from the MQ2 sensor.

Returns the value from the MQ2 sensor.

update()

void MQ2Sensor::update

(

)

Updates the MQ2 sensor.

Updates the MQ2 sensor with the latest readings.

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

• include/sensors/mq2.h
• src/sensors/mq2.cpp