Aaron Goselin / trackballer

Control library for the Sparkfun Entertainment Trackballer breakout board.

trackballer.h@15:a66aea99500e, 2011-02-20 (annotated)

Committer:
Nakor
Date:
Sun Feb 20 18:05:08 2011 +0000
Revision:
15:a66aea99500e
Parent:
7:229fc175e05e 

        

        
Who changed what in which revision?

        

            
                
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/* This library is for Sparkfun Entertainment's Trackballer breakout board.





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 * The board consists (mainly) of the trackball, 4 hall effect sensors, some magnets (obviously),





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 * a button, and 4 leds (white, red, green, blue).





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 *





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 * This library (trackballer) by Aaron Goselin.





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 * 2010 Aaron Goselin.





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 *





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 * You are free to use this as you like, but I would prefer credits stay in tact.





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 *





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 */





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#ifndef _TRACKBALLER_





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#define _TRACKBALLER_





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#include "mbed.h"





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//#include "PinDetect_m.h"





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#define TRACK_INC 0.01





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#define DEBUG_POSITION 0





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class trackballer {





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public:





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    trackballer(PinName button, PinName right, PinName down, PinName left, PinName up, PinName red, PinName green, PinName blue, PinName white, char limits = 0x00);





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    void getState(float &xPosition, float &yPosition, char &button);





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    void reset();





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protected:





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    Timer _outputTimer;





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    Timer _holdTimer;





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    DigitalIn * _buttonPin;





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    DigitalIn * _rightPin;





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    DigitalIn * _downPin;





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    DigitalIn * _leftPin;





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    DigitalIn * _upPin;





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    PwmOut * _redLED;





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    PwmOut * _greenLED;





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    PwmOut * _blueLED;





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    PwmOut * _whiteLED;





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    int _buttonPushCounter;   // counter for the number of button presses





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    char _buttonState;         // current state of the button





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    char _lastButtonState;     // previous state of the button





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    char _upState;





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    char _downState;





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    char _leftState;





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    char _rightState;





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    char _lastUpState;





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    char _lastDownState;





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    char _lastLeftState;





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    char _lastRightState;





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    float _xPosition;





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    float _yPosition;





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    char _direction;





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    char _limits;





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};





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#endif