main.c

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 * Copyright (C) 2015 Sensorian
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#include <bcm2835.h>
#include <stdio.h>
#include "MPL3115A2.h"
#include "i2c.h"
#include "Utilities.h"

int main(int argc, char **argv)
{

    I2C_Initialize(MPL3115A2_ADDRESS);      //Initialize I2C and setup chip address 
    MPL3115A2_Initialize();
    MPL3115A2_ActiveMode(); 
    
    printf("MPL3115A2 Altimeter/Barometer sensor demo.\r\n");
    
    unsigned char id  = MPL3115A2_ID(); //Verify chip id
    printf("Chip ID: 0x%02X . \r\n", id);
    
    while(1)
    {
        MPL3115A2_StandbyMode();
        MPL3115A2_AltimeterMode();
        float alt = MPL3115A2_ReadAltitude();   //Take an altimeter reading
        printf("Altimeter: %0.2f m above sea level.\r\n", alt/100);
        delay_ms(500);
        
        MPL3115A2_StandbyMode();
        MPL3115A2_BarometerMode();
        float press = MPL3115A2_ReadBarometricPressure();   //Take a pressure reading
        printf("Pressure: %0.2f Pascal. \r\n", press);
        delay_ms(500);
        
    }

return 0;
}