ADXL335 Class Reference

C++ API for the ADXL335 3-axis Analog Accelerometer. More...

Detailed Description

• ID: adxl335
• Name: ADXL335 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 each for X, Y, and Z axis.

  // 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 axis X
pinY	analog pin to use for axis Y
pinZ	analog pin to use for axis Z
aref	analog voltage reference, default 5.0

~ADXL335

(

)

ADXL335 Destructor

Member Function Documentation

void setZeroX ( float  zeroX )

inline

Set the "zero" value of the X axis, determined through calibration

Parameters

zeroX

The "zero" value of the X axis

void setZeroY ( float  zeroY )

inline

Set the "zero" value of the Y axis, determined through calibration

Parameters

zeroX

The "zero" value of the Y axis

void setZeroZ ( float  zeroZ )

inline

Set the "zero" value of the Z axis, determined through calibration

Parameters

zeroX

The "zero" value of the Z axis

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

Get the analog values for the 3 axes

Parameters

xVal	pointer to returned X value
yVal	pointer to returned Y value
zVal	pointer to returned Z value

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

Get the acceleration along all 3 axes

Parameters

xAccel	pointer to returned X value
yAccel	pointer to returned Y value
zAccel	pointer to returned Z value

void calibrate

(

)

While the sensor is still, measure the X, Y, and Z values and use those values as our zero values.

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

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