upm/examples/c/buzzer.c
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

56 lines
1.2 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#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;
}