ADXL335 Class Reference

API for the ADXL335 3-Axis Analog Accelerometer. More...

Detailed Description

• ID: adxl335
• Name: ADXL335 3-Axis Analog Accelerometer
• Other Names: Grove 3-Axis Analog Accelerometer
• Category: accelerometer
• Manufacturer: seeed
• Connection: analog

UPM module for the ADXL335 3-axis analog accelerometer. This was tested on a Grove 3-axis Analog Accelerometer. It uses 3 analog pins, one for each axis: X, Y, and Z.

  // Instantiate an ADXL335 accelerometer on analog pins A0, A1, and A2
  upm::ADXL335* accel = new upm::ADXL335(0, 1, 2);

  cout << "Please make sure the sensor is completely still. Sleeping for"
       << " 2 seconds." << endl;
  sleep(2);
  cout << "Calibrating..." << endl;

  accel->calibrate();
  
  while (shouldRun)
    {
      int x, y, z;
      float aX, aY, aZ;

      accel->values(&x, &y, &z);
      cout << "Raw Values: X: " << x << " Y: " << y << " Z: " << z << endl;

      accel->acceleration(&aX, &aY, &aZ);
      cout << "Acceleration: X: " << aX << "g" << endl;
      cout << "Acceleration: Y: " << aY << "g" << endl;
      cout << "Acceleration: Z: " << aZ << "g" << endl;
      cout << endl;

      usleep(200000);
    }

Public Member Functions
	ADXL335 (int pinX, int pinY, int pinZ, float aref=ADXL335_DEFAULT_AREF)
	~ADXL335 ()
void	setZeroX (float zeroX)
void	setZeroY (float zeroY)
void	setZeroZ (float zeroZ)
void	values (int *xVal, int *yVal, int *zVal)
void	acceleration (float *xAccel, float *yAccel, float *zAccel)
void	calibrate ()

Constructor & Destructor Documentation

ADXL335	(	int	pinX,
		int	pinY,
		int	pinZ,
		float	aref = ADXL335_DEFAULT_AREF
	)

ADXL335 constructor

Parameters

pinX	Analog pin to use for X-axis
pinY	Analog pin to use for Y-axis
pinZ	Analog pin to use for Z-axis
aref	Analog reference voltage; default is 5.0v

~ADXL335

(

)

ADXL335 destructor

Member Function Documentation

void setZeroX ( float  zeroX )

inline

Sets the "zero" value of the X-axis, determined through calibration

Parameters

zeroX

"Zero" value of the X-axis

void setZeroY ( float  zeroY )

inline

Sets the "zero" value of the Y-axis, determined through calibration

Parameters

zeroY

"Zero" value of the Y-axis

void setZeroZ ( float  zeroZ )

inline

Sets the "zero" value of the Z-axis, determined through calibration

Parameters

zeroZ

"Zero" value of the Z-axis

void values	(	int *	xVal,
		int *	yVal,
		int *	zVal
	)

Gets the analog values for the 3 axes

Parameters

xVal	Pointer to the returned X-axis value
yVal	Pointer to the returned Y-axis value
zVal	Pointer to the returned Z-axis value

void acceleration	(	float *	xAccel,
		float *	yAccel,
		float *	zAccel
	)

Gets the acceleration along all 3 axes

Parameters

xAccel	Pointer to returned X-axis value
yAccel	Pointer to returned Y-axis value
zAccel	Pointer to returned Z-axis value

void calibrate

(

)

While the sensor is still, measures the X-axis, Y-axis, and Z-axis values and uses those values as the zero values.

---

The documentation for this class was generated from the following files:

• /iotdk/jenkins/workspace/upm-doc-stable/src/adxl335/adxl335.h
• /iotdk/jenkins/workspace/upm-doc-stable/src/adxl335/adxl335.cxx