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Ernie Pasveer
38 lines
920 B
C
38 lines
920 B
C
/**
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* \file button.h
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*
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* Simple debouncing routine from
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* <https://hackaday.com/2015/12/10/embed-with-elliot-debounce-your-noisy-buttons-part-ii/>
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*
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*/
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#ifndef _button_h
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#define _button_h
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#include <stdint.h>
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#include "bool.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Button {
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uint8_t pin, /**< Pin to which button is attached */
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history, /**< Button state history */
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poll_freq, /**< How often (in ms) to check button state */
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last_poll; /**< Time at which we last checked button state */
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} Button;
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void button_new(Button *button, uint8_t pin, uint8_t poll_freq);
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extern void button_destroy(Button *);
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extern void button_update(Button *);
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extern bool button_is_pressed(Button *);
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extern bool button_is_released(Button *);
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extern bool button_is_up(Button *);
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extern bool button_is_down(Button *);
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#ifdef __cplusplus
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}
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#endif
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#endif // _button_h
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