55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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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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}
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