红外线 遥控 空调 测试成功



红外线 遥控 空调 测试成功参考了群里的很多文章以及网络上关于红外线的文章，也买了帖子里的那个逻辑调试仪
35块非常非常实惠，如果大家有兴趣在这方面有深入研究的这个是必须的
http://www.geek-workshop.com/forum.php?mod=viewthread&tid=5095&page=1&extra=#pid37445
http://www.geek-workshop.com/forum.php?mod=viewthread&tid=3444

当然，小白如果没兴趣弄那么高深的东西接下去我会教你们如何用arduino iremote现有的库完成
对家里的空调 进行控制

关于红外遥控器的文章很多，我不多叙述了，这里要说的就是空调的遥控器的发射和普通电视不太一样
码会非常长，所以iremote库内的函数无法支持（不是说写的有什么核心问题就是数据位的问题）
其实懂了之后很简单，但是这个问题我也研究了好几天，昨天用逻辑仪分析出结果控制成功，但是这个不适合小白
所以我今天进一步改进了原有的iremote 库的一些参数设置，让小白可以顺利的控制自己家的空调及其他非标设备

第一步 源代码的修改
1  你要找到如下三个文件 IRremote.ccp IRremote.h IRremoteInt.h ,在 arduino 安装目录下的libraries\arduino_iremote_master
也就是你的库文件，如果没有请参考帖子下载

2 修改IRremote.h
1）#define RAWBUF 270 // Length of raw duration buffer

// Marks tend to be 100us too long, and spaces 100us too short
// when received due to sensor lag.

这个默认值是100，因为我们接收的数据会超过100，所以在这里改成270，当然你也可以根据需要继续扩大

3 修改IRremoteInt.h
1）#define _GAP 50000 // Minimum map between transmissions

默认的数据是5000，因为遥控器会连续发两段代码，所以5000这个参数不适用，需要改到50000，否则你只能
接受到前一段代码仍然无法控制你家的空调


2）// information for the interrupt handler
typedef struct {
uint8_t recvpin;           // pin for IR data from detector
uint8_t rcvstate;          // state machine
uint8_t blinkflag;         // TRUE to enable blinking of pin 13 on IR processing
unsigned int timer;     // state timer, counts 50uS ticks.
unsigned int rawbuf[RAWBUF]; // raw data
// uint8_t rawlen;         // counter of entries in rawbuf
int rawlen;
}
irparams_t;

这段代码我们要修改的 rawlen的定义，在默认库中这个数据被定义为uint8 也就是 一个字节的整数，最大只能到255
所以我们将此参数改成int

第二部 dump 空调的代码
在你的第一部完成之后，我们可以开始dump空调代码了，
1 连线  按照我贴的连接的教程连接好你的红外接收器 ，一般 最左侧的是数据线然后是gnd 和vcc
2 在arduino 中调出IRecvDump 的例程序，可以通过 FILE->EXAMPLES->Arduino_IRremote_master 下找到
3 编译和下载
4 打开com口监控 Tools->Serial Monitor
5 使用你家的空调遥控器对着接收头按一下开关键
6 这个时候串口会跳出你家空调开关的代码
“Raw (264): 13306 3500 -1700 450 -1250 500 -400 450。。。。”

请记住第一个 13306 不是代码头，你需要把这个放到你的数据的最后也就是说你的发送代码是

Raw (264):  3500 -1700 450 -1250 500 -400 450 。。。。。。。13306“

第三部发送你的代码
请注意，由于电路的问题，你的红外发射器可能只能在很短的距离内控制家电，如果要增强效果请增加三极管放大电路
我这里不写放大的那部分，因为不是本文的核心
1  连接好线路 （此时你可以把你的红外 led 连接到你的arduino了）
这个非常简单，如果不用考虑设备电流以及其他问题，可以直接把pin 3 接到红外发射头的 正级（小的那块）
负极 是一个像旗子的一个东西，接地

2 把你接受的数据 放入程序，也就是unsigned int rawCodes_ac_close[264]这个数组【】内的数字根据你接受的数据大小来调整

  2. /*
  3. * IRremote: IRrecvDump – dump details of IR codes with IRrecv
  4. * An IR detector/demodulator must be connected to the input RECV_PIN.
  5. * Version 0.1 July, 2009
  6. * Copyright 2009 Ken Shirriff
  7. * http://arcfn.com
  8. * JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
  9. */
  11. #include <IRremote.h>
  12. int RECV_PIN = 11;//定义红外接收器的引脚为11
  13. //unsigned int rawCodes_ac_close[264]={3288,1591,432,1186,432,372,444,383,433,375,443,1184,434,382,434,383,433,384,433,383,433,1187,432,382,433,1186,432,1185,432,382,434,1186,431,1187,432,1186,432,1186,432,1186,432,383,433,1185,432,383,434,383,433,1186,432,383,433,383,433,383,433,384,433,1186,432,1186,432,1186,432,1186,432,383,433,383,433,383,433,384,433,384,433,384,433,383,433,383,433,383,433,383,433,383,433,384,433,384,432,384,432,383,433,383,432,384,432,385,432,385,432,384,432,384,432,385,432,384,432,384,432,384,432,1187,431,384,433,384,432,1187,431,1186,431,1186,431,384,433,27841,3287,1590,432,1186,431,384,434,383,433,383,433,1185,434,375,441,383,433,383,434,383,432,1186,433,382,433,1187,431,1186,432,383,433,1187,431,1186,432,1186,431,1186,432,1186,432,382,432,1187,431,383,433,384,433,1187,432,383,434,383,433,384,433,384,433,384,433,384,433,384,433,384,433,1186,432,1186,431,1187,431,1186,432,383,433,384,433,382,433,1186,430,1188,431,384,433,383,433,384,432,384,432,385,432,384,433,384,432,384,432,384,432,384,432,384,432,385,431,384,432,384,432,385,432,384,432,1188,431,383,433,384,432,1187,431,384,432,384,433,384,432,27841};
  15. //unsigned int rawCodes_ac_close[264]={3448,1668,453,1244,453,390,466,402,454,393,464,1242,455,400,455,401,454,402,454,402,454,1244,453,401,454,1244,453,1243,453,401,455,1243,452,1244,453,1243,453,1243,453,1243,453,402,454,1243,453,402,455,401,454,1244,453,401,454,402,454,401,454,402,454,1244,453,1244,453,1244,453,1243,453,401,454,402,454,402,454,403,454,402,454,402,454,402,454,402,454,402,454,402,454,402,454,402,454,403,453,402,453,402,454,402,453,403,453,403,452,403,453,403,453,402,453,403,453,403,453,403,453,403,453,1245,452,402,454,402,452,1245,452,1244,452,1244,452,402,454,29191,3446,1668,453,1244,452,402,455,402,454,402,454,1242,455,394,462,401,454,402,455,402,453,1244,454,401,454,1244,452,1244,453,401,454,1244,452,1243,453,1243,452,1244,453,1243,453,401,453,1245,452,402,454,402,454,1244,452,401,455,402,454,402,454,402,454,402,454,402,454,402,454,403,454,1244,453,1244,452,1245,452,1244,453,402,454,402,454,401,454,1244,451,1245,452,402,454,402,454,403,453,403,453,403,453,403,454,403,453,403,453,402,453,403,453,403,453,403,452,403,453,403,453,403,453,403,453,1245,452,402,454,402,453,1245,452,403,453,402,454,402,453,29191};
  17. unsigned int rawCodes_ac_close[264]={3500,1700,450,1250,500,400,450,400,450,450,450,1250,450,400,500,350,500,400,450,400,500,1250,450,400,500,1250,450,1250,450,400,500,1250,450,1300,450,1250,450,1300,450,1250,450,400,500,1250,450,400,450,400,500,1250,450,400,500,400,450,400,450,450,450,1250,450,1300,450,1250,450,1250,500,400,450,400,450,400,500,400,450,400,500,400,450,400,450,450,450,400,450,400,500,400,450,400,450,400,500,400,450,400,450,450,450,400,450,400,500,400,450,400,450,450,450,400,450,400,500,400,450,400,450,1300,450,400,450,400,500,1250,450,1250,450,1300,450,400,450,29650,3500,1700,450,1300,450,400,450,400,500,400,450,1250,500,400,450,400,450,400,500,400,450,1250,500,400,450,1250,450,1300,450,400,450,1250,500,1250,450,1250,500,1250,450,1250,500,400,450,1250,450,400,500,400,450,1250,500,400,450,400,450,450,450,400,450,400,500,400,450,400,450,400,500,1250,450,1250,500,1250,450,1250,500,400,450,400,450,400,500,1250,450,1250,500,400,450,400,450,450,450,400,450,400,500,350,500,400,450,450,450,400,450,400,450,450,450,400,450,400,500,400,450,400,450,450,450,1250,450,400,500,400,450,1250,450,400,500,400,450,400,500,13306};
  18. //上面改成你接受到的数据，请注意把接受到的第一个数据放到最后
  20. IRrecv irrecv(RECV_PIN);
  22. decode_results results;
  24. IRsend  irsend;
  26. //test
  28. void setup()
  29. {
  30.   Serial.begin(9600);
  31. irrecv.enableIRIn(); // 初始化红外接收器
  32. }
  35. void dump(decode_results *results) {
  36.   int count = results->rawlen;
  37.   if (results->decode_type == UNKNOWN) {
  38.     Serial.print(“Unknown encoding: “);
  39.   }
  40.   else if (results->decode_type == NEC) {
  41.     Serial.print(“Decoded NEC: “);
  42.   }
  43.   else if (results->decode_type == SONY) {
  44.     Serial.print(“Decoded SONY: “);
  45.   }
  46.   else if (results->decode_type == RC5) {
  47.     Serial.print(“Decoded RC5: “);
  48.   }
  49.   else if (results->decode_type == RC6) {
  50.     Serial.print(“Decoded RC6: “);
  51.   }
  52.   else if (results->decode_type == PANASONIC) {
  53.     Serial.print(“Decoded PANASONIC – Address: “);
  54.     Serial.print(results->panasonicAddress,HEX);
  55.     Serial.print(” Value: “);
  56.   }
  57.   else if (results->decode_type == JVC) {
  58.      Serial.print(“Decoded JVC: “);
  59.   }
  60.   Serial.print(results->value, HEX);
  61.   Serial.print(” (“);
  62.   Serial.print(results->bits, DEC);
  63.   Serial.println(” bits)”);
  64.   Serial.print(“Raw (“);
  65.   Serial.print(count, DEC);
  66.   Serial.print(“): “);
  68.   for (int i = 0; i < count; i++) {
  69.     if ((i % 2) == 1) {
  70.       Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
  71.     }
  72.     else {
  73.       Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
  74.     }
  75.     Serial.print(” “);
  76.   }
  77.   Serial.println(“”);
  78. }
  81. void loop() {
  82.   irsend.sendRaw(rawCodes_ac_close,264, 40);
  83.   delay(5);
  84.   // irsend.sendRaw(rawCodes_ac_close,264, 40);
  86.   if (irrecv.decode(&results)) {
  87.     Serial.println(results.value, HEX);
  88.     dump(&results);
  89. //    irsend.mark(560);
  90.   //    irsend.space(560);
  91.   //    irsend.mark(2000);
  92.    //   irsend.space(560);
  93.    //rsend.sendRaw(rawCodes_ac_close,6, 32);
  94.     irrecv.resume(); // Receive the next value
  95.   }
  96.    delay(5000);
  97. }

复制代码

好了，编译下载，通电，用led 对准你家的空调就可以了