mpxx6115a.h File Reference

MPXX6115A Pressure Sensor convert formula. More...

#include <drv/adc.h>

Go to the source code of this file.

Functions
int16_t	mpxx6115a_press (adcread_t vout, adcread_t vref)
	Convert read voltage from MPXX6115A Pressure Sensor in hPascal value.

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Detailed Description

MPXX6115A Pressure Sensor convert formula.

This module convert read voltage value from MPXX6115A pressure sensor into hPascal value unit.

Author:

Daniele Basile <asterix@develer.com>

Definition in file mpxx6115a.h.

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Function Documentation

int16_t mpxx6115a_press	(	adcread_t	vout,
		adcread_t	vref
	)			[inline]

Convert read voltage from MPXX6115A Pressure Sensor in hPascal value.

The conversion formula may be consulted on constructor datasheet (see Freescale Semiconductor MP3H6115A, MPXAZ6115A).

Parameters:

	vout	output voltage read from pin sensor.
	vref	reference voltage that supplies the MPXX6115A sensor.

Returns:

integer value that represent measured pressure in hPascal.

Note:

: To compute the pressure we use the Vout/Vref ratio, so these two values can be expressed in any unit, even ADC levels.

Definition at line 70 of file mpxx6115a.h.