UPM module for the ULN200XA Darlington Stepper Driver. More...

Detailed Description

ID: uln200xa
Name: Darlington Stepper Driver
Other Names: ULN2001A ULN2002A ULN2003A ULN2004A
Category: motor
Manufacturer: seeed
Link: http://www.seeedstudio.com/depot/Gear-Stepper-Motor-with-Driver-p-1685.html?cPath=39_40
Connection: gpio

This module was developed on a ULN2003A Stepper Driver. It should also support the ULN2001A, ULN2002A, and ULN2004A devices, when using to drive the 28BYJ-48 unipolar stepper motor.

Example driving a stepper motor

  // Instantiate a Stepper motor on a ULN200XA Darlington controller.
  // This was tested with the Grove Gear Stepper Motor with Driver
  // Wire the pins so that I1 is pin D8, I2 is pin D9, I3 is pin D10 and
  // I4 is pin D11
  upm::ULN200XA* uln200xa = new upm::ULN200XA(4096, 8, 9, 10, 11);
  uln200xa->setSpeed(5);
  uln200xa->setDirection(ULN200XA_DIR_CW);
  cout << "Rotating 1 revolution clockwise." << endl;
  uln200xa->stepperSteps(4096);
  cout << "Sleeping for 2 seconds..." << endl;
  sleep(2);
  cout << "Rotating 1/2 revolution counter clockwise." << endl;
  uln200xa->setDirection(ULN200XA_DIR_CCW);
  uln200xa->stepperSteps(2048);
  // turn off the power
  uln200xa->release();

Public Member Functions
	ULN200XA (int stepsPerRev, unsigned int i1, unsigned int i2, unsigned int i3, unsigned int i4)

	~ULN200XA ()

void	setSpeed (unsigned int speed)

void	setDirection (ULN200XA_DIRECTION_T dir)

void	stepperSteps (unsigned int steps)

void	release ()

Protected Attributes
uln200xa_context	m_uln200xa

Constructor & Destructor Documentation

ULN200XA	(	int	stepsPerRev,
		unsigned int	i1,
		unsigned int	i2,
		unsigned int	i3,
		unsigned int	i4
	)

ULN200XA constructor

Parameters

stepsPerRev	Number of steps per full revolution
i1	Digital pin to use for stepper input 1
i2	Digital pin to use for stepper input 2
i3	Digital pin to use for stepper input 3
i4	Digital pin to use for stepper input 4