ADXL345HL.h

00001 #pragma once
00002 #include "ADXL345_I2C.h"
00003 
00004 
00005 //Gravity at Earth's surface in m/s/s
00006 #define g0 9.812865328
00007 //Number of samples to average.
00008 #define SAMPLES 4
00009 //Convert from radians to degrees.
00010 #define toDegrees(x) (x * 57.2957795)
00011 //Convert from degrees to radians.
00012 #define toRadians(x) (x * 0.01745329252)
00013 //Full scale resolution on the ADXL345 is 4mg/LSB.
00014 #define ACCELEROMETER_GAIN (0.004 * g0)
00015 //Sampling accelerometer at 200Hz.
00016 #define ACC_RATE    0.005
00017 
00018 class ADXL345HL
00019 {
00020 private:
00021     ADXL345_I2C* accelerometer;
00022     int readings[3];
00023     double xBias;
00024     double yBias;
00025     double zBias;
00026     double* output; //x,y,z
00027     char address;   //i^2c device address
00028     int calibrationsamples;
00029     int readsamples;
00030     float samplerate;
00031 public:
00032     void init(int calibsamples, int readsampls, float samplrate);
00033     void calibrateAccelerometer(void);
00034     double* sampleAccelerometer(void);
00035     ADXL345HL();
00036     ~ADXL345HL();
00037 };