/* * blink-thread.c: * Standard "blink" program in wiringPi. Blinks an LED connected * to the first GPIO pin. * * Copyright (c) 2012-2013 Gordon Henderson. *********************************************************************** * This file is part of wiringPi: * https://projects.drogon.net/raspberry-pi/wiringpi/ * * wiringPi is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * wiringPi is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with wiringPi. If not, see . *********************************************************************** */ #include #include // LED Pin - wiringPi pin 0 is BCM_GPIO 17. #define LED 0 PI_THREAD (blinky) { for (;;) { digitalWrite (LED, HIGH) ; // On delay (500) ; // mS digitalWrite (LED, LOW) ; // Off delay (500) ; } } int main (void) { printf ("Raspberry Pi blink\n") ; wiringPiSetup () ; pinMode (LED, OUTPUT) ; piThreadCreate (blinky) ; for (;;) { printf ("Hello, world\n") ; delay (600) ; } return 0 ; }