/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Author: Petre Eftime <petre.p.eftime@intel.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//! [Interesting]
import mraa.Dir;
import mraa.Gpio;
import mraa.IntelEdison;
import mraa.mraa;
import mraa.Platform;
import mraa.Result;
public class HelloEdison {
static {
try {
System.loadLibrary("mraajava");
} catch (UnsatisfiedLinkError e) {
System.err.println(
"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
e);
System.exit(1);
}
}
public static void main(String argv[]) {
Platform platform = mraa.getPlatformType();
if (platform != Platform.INTEL_EDISON_FAB_C) {
System.err.println("Error: This program can only be run on edison");
System.exit(Result.ERROR_INVALID_PLATFORM.swigValue());
}
/*
* MRAA_INTEL_EDISON_GP182 == 0, so this will initialise pin0 on arduino,
* which is hardware GPIO 130 and not 182
* We set the owner to false here, this makes sure that we do not close the
* gpio from sysfs in mraa_gpio_close meaning it will stay as an output and
* we will not always transition from 0->1 as gpio182 as output has the
* default position of '0'. Note that the value could change as a result of
* a mraa_gpio_dir however meaning we always go from 0->1 or 1->0
*/
Gpio gpio182 = new Gpio(IntelEdison.INTEL_EDISON_GP182.swigValue(), false);
gpio182.dir(Dir.DIR_OUT);
int val = gpio182.read();
System.out.println(String.format("GPIO%d (mraa pin %d) was: %d, will set to %d\n", 182,
gpio182.getPin(), val, val == 0 ? 1 : 0));
gpio182.write(val == 0 ? 1 : 0);
};
}
//! [Interesting]