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ddr4s / fw / wiringPi / examples / softTone.c @ 32:cadb9025f1e0

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/*
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 * softTone.c:
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 *        Test of the softTone module in wiringPi
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 *        Plays a scale out on pin 3 - connect pizeo disc to pin 3 & 0v
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 *
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 * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
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 ***********************************************************************
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 * This file is part of wiringPi:
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 *        https://projects.drogon.net/raspberry-pi/wiringpi/
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 *
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 *    wiringPi is free software: you can redistribute it and/or modify
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 *    it under the terms of the GNU Lesser General Public License as published by
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 *    the Free Software Foundation, either version 3 of the License, or
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 *    (at your option) any later version.
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 *
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 *    wiringPi is distributed in the hope that it will be useful,
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 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *    GNU Lesser General Public License for more details.
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 *
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 *    You should have received a copy of the GNU Lesser General Public License
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 *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
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 ***********************************************************************
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 */
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <wiringPi.h>
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#include <softTone.h>
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#define        PIN        3
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int scale [8] = { 262, 294, 330, 349, 392, 440, 494, 525 } ;
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int main ()
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{
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  int i ;
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  wiringPiSetup () ;
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  softToneCreate (PIN) ;
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  for (;;)
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  {
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    for (i = 0 ; i < 8 ; ++i)
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    {
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      printf ("%3d\n", i) ;
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      softToneWrite (PIN, scale [i]) ;
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      delay (500) ;
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    }
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  }
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}