3 * Standard "blink" program in wiringPi. Blinks an LED connected
4 * to the first GPIO pin.
6 * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
7 ***********************************************************************
8 * This file is part of wiringPi:
9 * https://projects.drogon.net/raspberry-pi/wiringpi/
11 * wiringPi is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * wiringPi is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
23 ***********************************************************************
29 // LED Pin - wiringPi pin 0 is BCM_GPIO 17.
35 printf ("Raspberry Pi blink\n") ;
38 pinMode (LED, OUTPUT) ;
42 digitalWrite (LED, HIGH) ; // On
44 digitalWrite (LED, LOW) ; // Off