3 * Simple "blink" test for the PiFace interface board.
5 * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
6 ***********************************************************************
7 * This file is part of wiringPi:
8 * https://projects.drogon.net/raspberry-pi/wiringpi/
10 * wiringPi is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * wiringPi is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
22 ***********************************************************************
30 // Use 200 as the pin-base for the PiFace board, and pick a pin
31 // for the LED that's not connected to a relay
34 #define LED (PIFACE+2)
36 int main (int argc, char *argv [])
38 printf ("Raspberry Pi PiFace Blink\n") ;
39 printf ("=========================\n") ;
41 // Always initialise wiringPi. Use wiringPiSys() if you don't need
42 // (or want) to run as root
46 // Setup the PiFace board
48 piFaceSetup (PIFACE) ;
52 digitalWrite (LED, HIGH) ; // On
54 digitalWrite (LED, LOW) ; // Off