43 lines
1.8 KiB
C++
43 lines
1.8 KiB
C++
/*----------------------------------------------------------------------*
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* Arduino Button Library v1.0 *
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* Jack Christensen Mar 2012 *
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* *
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* This work is licensed under the Creative Commons Attribution- *
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* ShareAlike 3.0 Unported License. To view a copy of this license, *
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* visit http://creativecommons.org/licenses/by-sa/3.0/ or send a *
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* letter to Creative Commons, 171 Second Street, Suite 300, *
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* San Francisco, California, 94105, USA. *
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*----------------------------------------------------------------------*/
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#ifndef Button_h
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#define Button_h
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#if ARDUINO >= 100
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#include <Arduino.h>
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#else
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#include <WProgram.h>
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#endif
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class Button
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{
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public:
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Button(uint8_t pin, uint8_t puEnable, uint8_t invert, uint32_t dbTime);
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uint8_t read();
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uint8_t isPressed();
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uint8_t isReleased();
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uint8_t wasPressed();
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uint8_t wasReleased();
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uint8_t pressedFor(uint32_t ms);
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uint8_t releasedFor(uint32_t ms);
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uint32_t lastChange();
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private:
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uint8_t _pin; //arduino pin number
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uint8_t _puEnable; //internal pullup resistor enabled
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uint8_t _invert; //if 0, interpret high state as pressed, else interpret low state as pressed
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uint8_t _state; //current button state
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uint8_t _lastState; //previous button state
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uint8_t _changed; //state changed since last read
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uint32_t _time; //time of current state (all times are in ms)
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uint32_t _lastTime; //time of previous state
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uint32_t _lastChange; //time of last state change
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uint32_t _dbTime; //debounce time
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};
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#endif |