60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
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* blink.c:
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* Simple "blink" test for the PiFace interface board.
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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 <wiringPi.h>
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#include <piFace.h>
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// Use 200 as the pin-base for the PiFace board, and pick a pin
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// for the LED that's not connected to a relay
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#define PIFACE 200
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#define LED (PIFACE+2)
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int main (int argc, char *argv [])
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{
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printf ("Raspberry Pi PiFace Blink\n") ;
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printf ("=========================\n") ;
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// Always initialise wiringPi. Use wiringPiSys() if you don't need
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// (or want) to run as root
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wiringPiSetupSys () ;
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// Setup the PiFace board
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piFaceSetup (PIFACE) ;
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for (;;)
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{
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digitalWrite (LED, HIGH) ; // On
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delay (500) ; // mS
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digitalWrite (LED, LOW) ; // Off
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delay (500) ;
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}
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return 0 ;
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}
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