/users/dtb26/GITROOT/VetSim-Core/src/mma7361/AccelMMA7361/AccelMMA7361.h

/* AccelMMA7361.h - Library for retrieving data from the MMA7361 accelerometer. 

        Private Variables:
        -int zPin: which pin the z-axis pin is connected to. ANALOG IN          
        -int gSelectPin: which pin the Gselect is connected to. Unconnected.
        -int sleepPin: which pin the sleep port is attached. DIGITAL OUT       
        -int selfTestPin: which pin the selftest port is attached. Unconnected.
        -int zeroGPin: which pin the ZeroGpin is connected to. DIGITAL IN                 
        -double refV: The reference voltage
        -int sleeping: Indicates whether or not the accelerometer is in sleep mode (0 is not sleeping, 1 is sleeping)
        -int lowGrav: 1 indicates 1.5g mode, 0 indicates 6g mode
        -float acceleration[2]: [{old accel},{new accel}]
        -float velocity[2]: [{old velocity},{new velocity}]
        -float displacement[2]: [{old displacement},{new displacement}]
   
   Functions currently present:   
        -void init(pin arguments): Initializes all the relevant pins               
        -void sleep(): Lets the accelerometer enter sleep mode
        -void setAREF(double refV): Sets reference voltage to the value  
        -void calibrate(): Removes the offset from the raw data 
        
        -int getRawData(): Returns the raw data from the Z-axis analog I/O port of the Arduino as a int. OFFSET HAS NO INFLUENCE.       
        -int getVoltData()
        -float mapToAccel(): Maps raw data to acceleration              

        -void getData(): Prints acceleration, velocity, and displacement to UART while implementing
                                         subfunctions such as an acceleration filter, averaging, and end of movement detection
        -void setPeriod(): Input period in int ms, output period in float seconds
        -void setTolerance(): Sets the threshold of the high pass filter used in getAcceleration
        -void isMoving(): A movement 
        
*/

#ifndef AccelMMA7361_h
#define AccelMMA7361_h
#include "Arduino.h"

class AccelMMA7361 
{
        public: 
                AccelMMA7361();         
                void init(int zPin, int sleepPin, int zeroGPin);
                void sleepToggle(int sleep);
                void setAREF(float refV);
                int calibrate();
                                
                int getRawData();
                int getVoltData();
                float mapToAccel(int raw);      
                
                void getData(unsigned int smp);                         
                void getDisplacement();                         
                void setTolerance(float limit);
                void isMoving();
                void resetData();

                float acceleration[2];
                float velocity[2];
                float displacement[2];
                float period;
                unsigned int acceliszero;               
                
        private:
                int zPin;
                int sleepPin;
                int zeroGPin;   
                float refV;
                int sleeping;
                int lowGrav;
                int zOffset;                                            
                float threshold;
};

#endif 

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