Interface RegulatedMotor

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void addListener​(RegulatedMotorListener listener)
      Adds a listener object that will be notified when rotation has started or stopped
      void close()
      Close the port, the port can not be used after this call.
      void endSynchronization()
      Complete a set of synchronized motor operations.
      void flt​(boolean immediateReturn)
      Set the motor into float mode.
      int getLimitAngle()
      Return the limit angle (if any)
      float getMaxSpeed()
      Returns the maximum speed that can be maintained by the regulation system based upon the current state of the battery.
      int getSpeed()
      Returns the current motor speed.
      boolean isStalled()
      returns true if motor is stalled
      RegulatedMotorListener removeListener()
      Removes the RegulatedMotorListener from this class.
      void rotate​(int angle)
      Causes motor to rotate by a specified angle.
      void rotate​(int angle, boolean immediateReturn)
      causes motor to rotate through angle;
      iff immediateReturn is true, method returns immediately and the motor stops by itself
      If any motor method is called before the limit is reached, the rotation is canceled.
      void rotateTo​(int limitAngle)
      Causes motor to rotate to limitAngle;
      Then getTachoCount should be within +- 2 degrees of the limit angle when the method returns
      void rotateTo​(int limitAngle, boolean immediateReturn)
      causes motor to rotate to limitAngle;
      if immediateReturn is true, method returns immediately and the motor stops by itself
      and getTachoCount should be within +- 2 degrees if the limit angle If any motor method is called before the limit is reached, the rotation is canceled.
      void setAcceleration​(int acceleration)
      Set the required rate of acceleration degrees/s/s
      void setSpeed​(int speed)
      Set motor speed.
      void setStallThreshold​(int error, int time)
      Set the parameters for detecting a stalled motor.
      void startSynchronization()
      Begin a set of synchronized motor operations
      void stop​(boolean immediateReturn)
      Causes motor to stop, pretty much instantaneously.
      void synchronizeWith​(RegulatedMotor[] syncList)
      Specify a set of motors that should be kept in synchronization with this one.
      void waitComplete()
      Wait until the current movement operation is complete (this can include the motor stalling).
    • Method Detail

      • addListener

        void addListener​(RegulatedMotorListener listener)
        Adds a listener object that will be notified when rotation has started or stopped
        Parameters:
        listener -
      • removeListener

        RegulatedMotorListener removeListener()
        Removes the RegulatedMotorListener from this class.
        Returns:
        The RegulatedMotorListener that was removed, if any. Null if none existed.
      • stop

        void stop​(boolean immediateReturn)
        Causes motor to stop, pretty much instantaneously. In other words, the motor doesn't just stop; it will resist any further motion. Cancels any rotate() orders in progress
        Parameters:
        immediateReturn - if true do not wait for the motor to actually stop
      • flt

        void flt​(boolean immediateReturn)
        Set the motor into float mode. This will stop the motor without braking and the position of the motor will not be maintained.
        Parameters:
        immediateReturn - If true do not wait for the motor to actually stop
      • waitComplete

        void waitComplete()
        Wait until the current movement operation is complete (this can include the motor stalling).
      • rotate

        void rotate​(int angle,
                    boolean immediateReturn)
        causes motor to rotate through angle;
        iff immediateReturn is true, method returns immediately and the motor stops by itself
        If any motor method is called before the limit is reached, the rotation is canceled. When the angle is reached, the method isMoving() returns false;
        Parameters:
        angle - through which the motor will rotate
        immediateReturn - iff true, method returns immediately, thus allowing monitoring of sensors in the calling thread.
        See Also:
        rotate(int, boolean)
      • rotate

        void rotate​(int angle)
        Causes motor to rotate by a specified angle. The resulting tachometer count should be within +- 2 degrees on the NXT. This method does not return until the rotation is completed.
        Parameters:
        angle - by which the motor will rotate.
      • rotateTo

        void rotateTo​(int limitAngle)
        Causes motor to rotate to limitAngle;
        Then getTachoCount should be within +- 2 degrees of the limit angle when the method returns
        Parameters:
        limitAngle - to which the motor will rotate, and then stop (in degrees). Includes any positive or negative int, even values > 360.
      • rotateTo

        void rotateTo​(int limitAngle,
                      boolean immediateReturn)
        causes motor to rotate to limitAngle;
        if immediateReturn is true, method returns immediately and the motor stops by itself
        and getTachoCount should be within +- 2 degrees if the limit angle If any motor method is called before the limit is reached, the rotation is canceled. When the angle is reached, the method isMoving() returns false;
        Parameters:
        limitAngle - to which the motor will rotate, and then stop (in degrees). Includes any positive or negative int, even values > 360.
        immediateReturn - iff true, method returns immediately, thus allowing monitoring of sensors in the calling thread.
      • getLimitAngle

        int getLimitAngle()
        Return the limit angle (if any)
        Returns:
        the current limit angle
      • setSpeed

        void setSpeed​(int speed)
        Set motor speed. As a rule of thumb 100 degrees per second are possible for each volt on an NXT motor. Therefore, disposable alkaline batteries can achieve a top speed of 900 deg/sec, while a rechargable lithium battery pack can achieve 740 deg/sec.
        Parameters:
        speed - in degrees per second.
      • getSpeed

        int getSpeed()
        Returns the current motor speed.
        Returns:
        motor speed in degrees per second
      • getMaxSpeed

        float getMaxSpeed()
        Returns the maximum speed that can be maintained by the regulation system based upon the current state of the battery.
        Returns:
        the maximum speed of the Motor in degrees per second.
      • isStalled

        boolean isStalled()
        returns true if motor is stalled
        Returns:
        true if stalled
      • setStallThreshold

        void setStallThreshold​(int error,
                               int time)
        Set the parameters for detecting a stalled motor. A motor will be recognized as stalled if the movement error (the amount the motor lags the regulated position) is greater than error for a period longer than time.
        Parameters:
        error - The error threshold
        time - The time that the error threshold needs to be exceeded for.
      • setAcceleration

        void setAcceleration​(int acceleration)
        Set the required rate of acceleration degrees/s/s
        Parameters:
        acceleration -
      • synchronizeWith

        void synchronizeWith​(RegulatedMotor[] syncList)
        Specify a set of motors that should be kept in synchronization with this one. The synchronization mechanism simply ensures that operations between a startSynchronization call and an endSynchronization call will all be executed at the same time (when the endSynchronization method is called). This is all that is needed to ensure that motors will operate in a synchronized fashion. The start/end methods can also be used to ensure that reads of the motor state will also be consistent.
        Parameters:
        syncList - an array of motors to synchronize with.
      • startSynchronization

        void startSynchronization()
        Begin a set of synchronized motor operations
      • endSynchronization

        void endSynchronization()
        Complete a set of synchronized motor operations.
      • close

        void close()
        Close the port, the port can not be used after this call.
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable