1 import mraa.Dir; 2 import mraa.Gpio; 3 import mraa.Platform; 4 import mraa.mraa; 5 6 /* 7 * Author: Brendan Le Foll <brendan.le.foll@intel.com> 8 * Copyright (c) 2014 Intel Corporation. 9 * Author: Jakub Kramarz <jkramarz@virtuslab.com> 10 * Copyright (c) 2015 VirtusLab 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining 13 * a copy of this software and associated documentation files (the 14 * "Software"), to deal in the Software without restriction, including 15 * without limitation the rights to use, copy, modify, merge, publish, 16 * distribute, sublicense, and/or sell copies of the Software, and to 17 * permit persons to whom the Software is furnished to do so, subject to 18 * the following conditions: 19 * 20 * The above copyright notice and this permission notice shall be 21 * included in all copies or substantial portions of the Software. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 27 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 28 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 29 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 30 */ 31 32 public class BlinkOnboard { 33 static { 34 try { 35 System.loadLibrary("mraajava"); 36 } catch (UnsatisfiedLinkError e) { 37 System.err.println( 38 "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + 39 e); 40 System.exit(1); 41 } 42 } main(String argv[])43 public static void main(String argv[]) throws InterruptedException { 44 Platform platform = mraa.getPlatformType(); 45 Gpio gpio, gpio_in; 46 if (platform == Platform.INTEL_GALILEO_GEN1) { 47 gpio = new Gpio(3); 48 } else if (platform == Platform.INTEL_MINNOWBOARD_MAX) { 49 gpio = new Gpio(21); 50 } else { 51 gpio = new Gpio(13); 52 } 53 System.out.format("Welcome to libmraa\n Version: %s\n Running on %s\n", 54 mraa.getVersion(), platform.toString()); 55 56 gpio.dir(Dir.DIR_OUT); 57 // on platforms with physical button use gpio_in 58 if (platform == Platform.INTEL_MINNOWBOARD_MAX) { 59 gpio_in = new Gpio(14); 60 gpio_in.dir(Dir.DIR_IN); 61 System.out.println("Press and hold S1 to stop, Press SW1 to shutdown!"); 62 } else { 63 gpio_in = null; 64 } 65 66 boolean state = false; 67 while (true) { 68 if (gpio_in != null && gpio_in.read() == 0) { 69 return; 70 } 71 if (state) { 72 state = false; 73 gpio.write(1); 74 } else { 75 state = true; 76 gpio.write(0); 77 } 78 Thread.sleep(1000); 79 } 80 } 81 }