| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| package org.apache.edgent.samples.scenarios.iotp.range.sensor; |
| |
| import com.pi4j.io.gpio.GpioController; |
| import com.pi4j.io.gpio.GpioFactory; |
| import com.pi4j.io.gpio.GpioPinDigitalOutput; |
| import com.pi4j.io.gpio.Pin; |
| import com.pi4j.io.gpio.PinState; |
| |
| public class LED { |
| private final GpioController gpio = GpioFactory.getInstance(); |
| private GpioPinDigitalOutput pin; |
| |
| public LED(Pin pin) { |
| this.pin = gpio.provisionDigitalOutputPin(pin, "LED", PinState.HIGH); |
| this.pin.setShutdownOptions(true, PinState.LOW); |
| this.pin.low(); |
| } |
| |
| public void on() { |
| this.pin.high(); |
| } |
| |
| public void off() { |
| this.pin.low(); |
| } |
| |
| public void toggle() { |
| this.pin.toggle(); |
| } |
| |
| public void flash(long ms) { |
| this.pin.pulse(ms); |
| } |
| } |