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SFE_MMA8452Q.h
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/******************************************************************************
SFE_MMA8452Q.h
SFE_MMA8452Q Library Header File
Jim Lindblom @ SparkFun Electronics
Original Creation Date: June 3, 2014
https://github.com/sparkfun/MMA8452_Accelerometer
This file prototypes the MMA8452Q class, implemented in SFE_MMA8452Q.cpp. In
addition, it defines every register in the MMA8452Q.
Development environment specifics:
IDE: Arduino 1.0.5
Hardware Platform: Arduino Uno
This code is beerware; if you see me (or any other SparkFun employee) at the
local, and you've found our code helpful, please buy us a round!
Distributed as-is; no warranty is given.
******************************************************************************/
#ifndef SFE_MMA8452Q_h
#define SFE_MMA8452Q_h
#include <Arduino.h>
///////////////////////////////////
// MMA8452Q Register Definitions //
///////////////////////////////////
enum MMA8452Q_Register {
STATUS = 0x00,
OUT_X_MSB = 0x01,
OUT_X_LSB = 0x02,
OUT_Y_MSB = 0x03,
OUT_Y_LSB = 0x04,
OUT_Z_MSB = 0x05,
OUT_Z_LSB = 0x06,
SYSMOD = 0x0B,
INT_SOURCE = 0x0C,
WHO_AM_I = 0x0D,
XYZ_DATA_CFG = 0x0E,
HP_FILTER_CUTOFF = 0x0F,
PL_STATUS = 0x10,
PL_CFG = 0x11,
PL_COUNT = 0x12,
PL_BF_ZCOMP = 0x13,
P_L_THS_REG = 0x14,
FF_MT_CFG = 0x15,
FF_MT_SRC = 0x16,
FF_MT_THS = 0x17,
FF_MT_COUNT = 0x18,
TRANSIENT_CFG = 0x1D,
TRANSIENT_SRC = 0x1E,
TRANSIENT_THS = 0x1F,
TRANSIENT_COUNT = 0x20,
PULSE_CFG = 0x21,
PULSE_SRC = 0x22,
PULSE_THSX = 0x23,
PULSE_THSY = 0x24,
PULSE_THSZ = 0x25,
PULSE_TMLT = 0x26,
PULSE_LTCY = 0x27,
PULSE_WIND = 0x28,
ASLP_COUNT = 0x29,
CTRL_REG1 = 0x2A,
CTRL_REG2 = 0x2B,
CTRL_REG3 = 0x2C,
CTRL_REG4 = 0x2D,
CTRL_REG5 = 0x2E,
OFF_X = 0x2F,
OFF_Y = 0x30,
OFF_Z = 0x31
};
////////////////////////////////
// MMA8452Q Misc Declarations //
////////////////////////////////
enum MMA8452Q_Scale {SCALE_2G = 2, SCALE_4G = 4, SCALE_8G = 8}; // Possible full-scale settings
enum MMA8452Q_ODR {ODR_800, ODR_400, ODR_200, ODR_100, ODR_50, ODR_12, ODR_6, ODR_1}; // possible data rates
// Possible portrait/landscape settings
#define PORTRAIT_U 0
#define PORTRAIT_D 1
#define LANDSCAPE_R 2
#define LANDSCAPE_L 3
#define LOCKOUT 0x40
////////////////////////////////
// MMA8452Q Class Declaration //
////////////////////////////////
class MMA8452Q
{
public:
MMA8452Q(byte addr = 0x1D); // Constructor
byte init(MMA8452Q_Scale fsr = SCALE_2G, MMA8452Q_ODR odr = ODR_800);
void read();
byte available();
byte readTap();
byte readPL();
int x, y, z;
float cx, cy, cz;
private:
byte address;
MMA8452Q_Scale scale;
void standby();
void active();
void setupPL();
void setupTap(byte xThs, byte yThs, byte zThs);
void setScale(MMA8452Q_Scale fsr);
void setODR(MMA8452Q_ODR odr);
void writeRegister(MMA8452Q_Register reg, byte data);
void writeRegisters(MMA8452Q_Register reg, byte *buffer, byte len);
byte readRegister(MMA8452Q_Register reg);
void readRegisters(MMA8452Q_Register reg, byte *buffer, byte len);
};
#endif