Device driver interface for the MQ-3 alcohol sensor. More...

Detailed Description

Device driver interface for the MQ-3 alcohol sensor.

Author: Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file mq3.h.

#include "periph/adc.h"

Include dependency graph for mq3.h:

Data Structures
struct	mq3_t
	device descriptor for a MQ-3 sensor More...

Macros
#define	MQ3_MAX_RAW_VALUE (1023U)
	maximum unprocessed value fetched form the sensor

Functions
int	mq3_init (mq3_t *dev, adc_t adc_line)
	Initialize a MQ-3 alcohol sensor.

int16_t	mq3_read_raw (const mq3_t *dev)
	Read the RAW sensor value, can be between 0 and MQ3_MAX_RAW_VALUE.

int16_t	mq3_read (const mq3_t *dev)
	Read the scaled sensor value of PPM of alcohol.

Data Structures