/*
    ADXL335.h
    Library for accelerometer_ADXL335

    Copyright (c) 2013 seeed technology inc.
    Author        :   FrankieChu
    Create Time   :   Jan 2013
    Change Log    :

    The MIT License (MIT)

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
*/

#ifndef __ADXL335_H__
#define __ADXL335_H__

#include <Arduino.h>

// macro definitions of Analog read pins
#ifndef X_AXIS_PIN
#define X_AXIS_PIN A0
#endif
#ifndef Y_AXIS_PIN
#define Y_AXIS_PIN A1
#endif
#ifndef Z_AXIS_PIN
#define Z_AXIS_PIN A2
#endif

// amplitude of the 10bit-ADC of Arduino is 1024LSB, using as default
#ifndef ADC_AMPLITUDE
#define ADC_AMPLITUDE 1024
#endif
#ifndef ADC_REF
#define ADC_REF 5  // ADC reference is 5v
#endif

// accleration of X-AXIS is 0g, the voltage of X-AXIS is 1.22v
#ifndef ZERO_X
#define ZERO_X 1.22
#endif
#ifndef ZERO_Y
#define ZERO_Y 1.22  //
#endif
#ifndef ZERO_Z
#define ZERO_Z 1.25  //
#endif

// sensitivity of X/Y/Z axis is 0.25v/g
#ifndef SENSITIVITY
#define SENSITIVITY 0.25
#endif

class ADXL335 {
  private:
    void pinsInit();
    float scale;
  public:
    void begin();
    void getXYZ(int* x, int* y, int* z);
    void getAcceleration(float* ax, float* ay, float* az);
    float getAccelerationX();
    float getAccelerationY();
    float getAccelerationZ();
};

#endif