com.diozero.sampleapps.ButtonTestWiringPi Maven / Gradle / Ivy
package com.diozero.sampleapps;
/*
* #%L
* Device I/O Zero - wiringPi provider
* %%
* Copyright (C) 2016 diozero
* %%
* 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.
* #L%
*/
import com.diozero.util.SleepUtil;
import com.pi4j.wiringpi.Gpio;
import com.pi4j.wiringpi.GpioInterruptCallback;
import com.pi4j.wiringpi.GpioUtil;
public class ButtonTestWiringPi implements GpioInterruptCallback {
public static void main(String[] args) {
new ButtonTestWiringPi().test(12);
}
public void test(int gpio) {
int status = Gpio.wiringPiSetupGpio();
if (status != 0) {
throw new RuntimeException("Error initialising wiringPi: " + status);
}
Gpio.pinMode(gpio, Gpio.INPUT);
Gpio.pullUpDnControl(gpio, Gpio.PUD_UP);
int delay = 20;
System.out.println("Waiting " + delay + "s for events..., thread name=" + Thread.currentThread().getName());
if (Gpio.wiringPiISR(gpio, Gpio.INT_EDGE_BOTH, this) != 1) {
System.out.println("Error in wiringPiISR");
} else {
System.out.println("Sleeping for " + delay + "s");
SleepUtil.sleepSeconds(delay);
}
GpioUtil.unexport(gpio);
}
@Override
public void callback(int pin) {
System.out.println("callback(" + pin + "), thread name=" + Thread.currentThread().getName());
}
}