001/*----------------------------------------------------------------------------*/ 002/* Copyright (c) FIRST 2008-2017. All Rights Reserved. */ 003/* Open Source Software - may be modified and shared by FRC teams. The code */ 004/* must be accompanied by the FIRST BSD license file in the root directory of */ 005/* the project. */ 006/*----------------------------------------------------------------------------*/ 007 008package edu.wpi.first.wpilibj; 009 010/** 011 * DigitalSource Interface. The DigitalSource represents all the possible inputs for a counter or a 012 * quadrature encoder. The source may be either a digital input or an analog input. If the caller 013 * just provides a channel, then a digital input will be constructed and freed when finished for the 014 * source. The source can either be a digital input or analog trigger but not both. 015 */ 016public abstract class DigitalSource extends InterruptableSensorBase { 017 public abstract boolean isAnalogTrigger(); 018 019 public abstract int getChannel(); 020}