红外控制Arduino控制热水器（技术资料）.zip

package com.androiddeveloper.ircontrolwaterheater.ir; import java.util.ArrayList; import java.util.List; /** * Copyright : huangr * Created by huangr on 2019/8/8. * ClassName : NecPattern * Description : 构造NEC协议的pattern编码 */ public class NecPattern { //引导码 private static final int startH = 9000; private static final int startL = 4500; //结束码 private static final int endL = 560; private static final int endH = 2000; //高电平 private static final int high8 = 560; //低电平0：1125 private static final int low0 = 565; //低电平1：2250 private static final int low1 = 1690; private static List<Integer> list = new ArrayList<>(); /** * 正常发码：引导码（9ms+4.5ms）+用户编码（高八位）+用户编码（低八位）+键数据码+键数据反码+结束码 */ public static int[] buildPattern(int userCodeHigh, int userCodeLow, int keyCode) { //用户编码高八位00 String userH = constructBinaryCode(userCodeHigh); //用户编码低八位DF String userL = constructBinaryCode(userCodeLow); //数字码 String key = constructBinaryCode(keyCode); //数字反码 String keyReverse = constructBinaryCode(~keyCode); list.clear(); //引导码 list.add(startH); list.add(startL); //用户编码 changeAdd(userH); changeAdd(userL); //键数据码 changeAdd(key); //键数据反码 changeAdd(keyReverse); //结束码 list.add(endL); list.add(endH); int size = list.size(); int[] pattern = new int[size]; for (int i = 0; i < size; i++) { pattern[i] = list.get(i); } return pattern; } /** * 十六进制键值转化为二进制串，并逆转编码 * * @param keyCode * @return */ private static String constructBinaryCode(int keyCode) { String binaryStr = convertToBinary(keyCode); char[] chars = binaryStr.toCharArray(); StringBuilder sb = new StringBuilder(); for (int i = 7; i >= 4; i--) { sb.append(chars[i]); } for (int i = 3; i >= 0; i--) { sb.append(chars[i]); } return sb.toString(); } /** * 数字转换为长度为8位的二进制字符串 * * @return */ private static String convertToBinary(int num) { String binary = Integer.toBinaryString(num); StringBuilder sb8 = new StringBuilder(); //每个元素长度为8位，不够前面补充0 if (binary.length() < 8) { for (int i = 0; i < 8 - binary.length(); i++) { sb8.append("0"); } return sb8.append(binary).toString(); } else { return binary.substring(binary.length() - 8); } } /** * 二进制转成电平 * * @param code */ public static void changeAdd(String code) { int len = code.length(); String part; for (int i = 0; i < len; i++) { list.add(high8); part = code.substring(i, i + 1); if (part.equals("0")) list.add(low0); else list.add(low1); } } }