hslockmk2/software/keypad/buzzer.h

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#ifndef __BUZZER_H__
#define __BUZZER_H__
void buzzer_init(void);
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void buzzer_signal_boot(void);
void buzzer_start_timed(uint16_t, uint16_t);
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#define TONE_LOW 128
#define TONE_MID 64
#define TONE_HIGH 32
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#endif