Speaker

APIs for speaker. More...

Macros
#define	SOUND_MANUAL_STOP   (-1)
#define	NOTE_C4   ( 261.63)
#define	NOTE_CS4   ( 277.18)
#define	NOTE_D4   ( 293.66)
#define	NOTE_DS4   ( 311.13)
#define	NOTE_E4   ( 329.63)
#define	NOTE_F4   ( 349.23)
#define	NOTE_FS4   ( 369.99)
#define	NOTE_G4   ( 392.00)
#define	NOTE_GS4   ( 415.30)
#define	NOTE_A4   ( 440.00)
#define	NOTE_AS4   ( 466.16)
#define	NOTE_B4   ( 493.88)
#define	NOTE_C5   ( 523.25)
#define	NOTE_CS5   ( 554.37)
#define	NOTE_D5   ( 587.33)
#define	NOTE_DS5   ( 622.25)
#define	NOTE_E5   ( 659.25)
#define	NOTE_F5   ( 698.46)
#define	NOTE_FS5   ( 739.99)
#define	NOTE_G5   ( 783.99)
#define	NOTE_GS5   ( 830.61)
#define	NOTE_A5   ( 880.00)
#define	NOTE_AS5   ( 932.33)
#define	NOTE_B5   ( 987.77)
#define	NOTE_C6   (1046.50)
#define	NOTE_CS6   (1108.73)
#define	NOTE_D6   (1174.66)
#define	NOTE_DS6   (1244.51)
#define	NOTE_E6   (1318.51)
#define	NOTE_F6   (1396.91)
#define	NOTE_FS6   (1479.98)
#define	NOTE_G6   (1567.98)
#define	NOTE_GS6   (1661.22)
#define	NOTE_A6   (1760.00)
#define	NOTE_AS6   (1864.66)
#define	NOTE_B6   (1975.53)

Functions
void	hub_speaker_set_volume (uint8_t volume)
	Set the volume level of speaker. More...
void	hub_speaker_play_tone (uint16_t frequency, int32_t duration)
	Play a tone. More...
void	hub_speaker_stop (void)
	Stop the sound.

Detailed Description

APIs for speaker.

Function Documentation

hub_speaker_play_tone()

void hub_speaker_play_tone	(	uint16_t	frequency,
		int32_t	duration
	)

Play a tone.

Parameters

frequency	frequency of the note in Hz.
duraton	duration to play in msec or SOUND_MANUAL_STOP, which requires a call to hub_speaker_stop to stop the tone.

hub_speaker_set_volume()

void hub_speaker_set_volume

(

uint8_t

volume

)

Set the volume level of speaker.

Parameters

volume

the percentage of max volume level, between 0 and 100.