基于Arduino的解码红外遥控器控制家电（红外接收、红外发射）

1、概述

近期看到一些书上，有对红外遥控的介绍，各大论坛也有很多对红外遥控器的介绍，但是发现一个问题是:大部分都很难控制家里的空调或者彩电或者因为作者的写帖子或者教程的习惯，导致有些操作萌新还不是很清楚。今天我们就来整理一下，尝试一个红外发射模块控制家用空调。

对于模块不了解的，可以先看一下我们的模块教程[传送门]，了解掌握模块使用方法后，再尝试本小实验。因为综合实验一般涉及多个模块，我们仅对全部使用我司产品的客户做技术支持，若只是部分使用我司产品的，我们只对我司产品部分是否有故障进行排查。

2、所需材料

1、UNO主控板：官方板或者国产板
2、辅助配件：杜邦线、9V电池、9V电池座
3、传感器和模块：红外发射模块、红外接收模块

3、接线图

4、示例程序

（接收模块）

#include <IRremote.h>
int RECV_PIN = 11; //红外接收模块连接在11脚
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn();
}
void loop()
{
if (irrecv.decode(&results))
{
dump(&results);
irrecv.resume();
}
}
void dump(decode_results *results)
{
int count = results->rawlen;
Serial.print("Raw (");
Serial.print(count);
Serial.print("): ");
for (int i = 0; i < count; i++)
{
Serial.print(results->rawbuf[i]*USECPERTICK);
Serial.print(",");
}
Serial.println();
}

发射部分

#include <IRremote.h>
//红外发射模块接D3引脚

IRsend irsend;
unsigned int key_on[198]={6100,7300,550,550,550,550,550,600,550,550,550,600,550,550,550,600,500,600,550,550,550,550,550,600,500,600,500,650,500,600,550,550,550,600,550,550,550,550,550,600,550,550,550,550,600,550,550,550,550,600,500,600,500,600,550,550,550,600,550,550,550,1650,500,600,550,550,550,600,550,550,550,600,550,550,550,550,600,550,550,550,550,600,500,600,500,600,550,550,550,600,550,550,550,600,550,550,550,550,600,550,550,550,550,600,500,600,500,600,550,550,600,550,550,550,550,600,550,1600,550,550,600,1600,500,650,500,600,550,550,550,550,600,550,550,550,550,600,550,550,550,550,550,600,500,600,550,1650,500,600,500,650,500,1650,550,550,550,600,500,600,550,550,550,1650,500,1650,550,600,500,1650,550,600,550,550,550,1600,600,550,550,1600,550,1650,500,1650,600,550,500,600,500,1700,550,550,550,1600,600,1600,550,7350,500,};
unsigned int key_off[198]={6050,7350,550,550,550,550,550,600,500,600,550,600,500,600,550,550,550,600,500,600,500,600,550,600,500,600,550,550,550,600,500,600,550,600,500,600,550,550,550,600,500,600,550,550,550,600,500,600,550,550,550,600,550,550,550,600,500,600,500,650,500,1650,550,550,500,600,550,600,550,550,550,600,500,600,550,550,550,600,500,600,550,600,500,600,500,600,550,550,550,600,500,600,550,600,500,600,550,550,550,600,500,600,500,600,550,600,550,550,550,550,550,600,550,550,550,600,500,600,550,550,550,1650,550,550,550,600,500,600,500,600,550,600,500,600,550,550,550,600,500,600,550,600,500,600,500,1650,550,600,500,600,500,1700,500,600,550,550,550,600,500,600,550,1650,500,1650,550,600,500,1650,550,550,550,600,500,1650,550,600,500,1650,550,1600,600,550,500,600,550,600,500,1650,550,600,500,1650,550,1650,500,7350,550,
};//编码部分
void setup(){}

void loop()
{
irsend.sendRaw(key_on,198,38);//发送原始编码数据.
delay(5000);
irsend.sendRaw(key_off,198,38);
delay(5000);
}