mirror of
https://github.com/epasveer/seer.git
synced 2026-08-29 16:40:42 +08:00
Ernie Pasveer
38 lines
920 B
C
38 lines
920 B
C
/**
|
|
* \file button.h
|
|
*
|
|
* Simple debouncing routine from
|
|
* <https://hackaday.com/2015/12/10/embed-with-elliot-debounce-your-noisy-buttons-part-ii/>
|
|
*
|
|
*/
|
|
#ifndef _button_h
|
|
#define _button_h
|
|
|
|
#include <stdint.h>
|
|
#include "bool.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct Button {
|
|
uint8_t pin, /**< Pin to which button is attached */
|
|
history, /**< Button state history */
|
|
poll_freq, /**< How often (in ms) to check button state */
|
|
last_poll; /**< Time at which we last checked button state */
|
|
} Button;
|
|
|
|
void button_new(Button *button, uint8_t pin, uint8_t poll_freq);
|
|
extern void button_destroy(Button *);
|
|
extern void button_update(Button *);
|
|
extern bool button_is_pressed(Button *);
|
|
extern bool button_is_released(Button *);
|
|
extern bool button_is_up(Button *);
|
|
extern bool button_is_down(Button *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // _button_h
|