upm/examples/c/buzzer.c

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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <upm_utilities.h>
#include <buzzer.h>
int
main(int argc, char **argv)
{
//! [Interesting]
int chord[] = { BUZZER_DO, BUZZER_RE, BUZZER_MI,
BUZZER_FA, BUZZER_SOL, BUZZER_LA,
BUZZER_SI };
// create Buzzer context, using PWM pin 5
buzzer_context sound = buzzer_init(5);
if (!sound)
{
printf("buzzer_init() failed\n");
return 1;
}
printf("Playing...\n");
// play each sound (DO, RE, MI, etc...) for .5 seconds, pausing
// for 0.1 seconds between notes
for (int chord_ind = 0; chord_ind < 7; chord_ind++)
{
buzzer_play_sound(sound, chord[chord_ind], 500000);
printf("%d\n", chord[chord_ind]);
upm_delay_ms(100);
}
printf("Exiting...\n");
buzzer_close(sound);
//! [Interesting]
return 0;
}