1 准备

1.1 硬件与软件

1. 单片机
2. Arduino应用程序：
   https://www.arduino.cc/en/software

1.2 走线

如图，
需要舵机，红外接收器，红外发射器以及遥控器

2 代码

Arduino在IRremote库中提供了许多例子，在已有例子的基础上稍微加以改动便可以实现红外遥控

2.1 ReceiveDump

新建了示例之后，在PinDefinitionsAndMore.h文件中复制

#define IR_RECEIVE_PIN          14 // D5
#define IR_SEND_PIN             12 // D6 - D4/pin 2 is internal LED

在ReceiveDump中的

#include <Arduino.h>

//#define RAW_BUFFER_LENGTH  750  // 750 is the value for air condition remotes.

/*
 * You can change this value accordingly to the receiver module you use.
 * The required value can be derived from the timings printed here.
 * Keep in mind that the timings may change with the distance
 * between sender and receiver as well as with the ambient light intensity.
 */
#define MARK_EXCESS_MICROS    20 // recommended for the cheap VS1838 modules

//#define RECORD_GAP_MICROS 12000 // Activate it for some LG air conditioner protocols
//#define DEBUG // Activate this for lots of lovely debug output from the decoders.

#include "PinDefinitionsAndMore.h" //Define macros for input and output pin etc.
#include <IRremote.hpp>

//+=============================================================================

Include <IRremote.hpp>这一行之后粘贴，将#define RAW_BUFFER_LENGTH取消注释，变成

#include <Arduino.h>

#define RAW_BUFFER_LENGTH  750  // 750 is the value for air condition remotes.

/*
 * You can change this value accordingly to the receiver module you use.
 * The required value can be derived from the timings printed here.
 * Keep in mind that the timings may change with the distance
 * between sender and receiver as well as with the ambient light intensity.
 */
#define MARK_EXCESS_MICROS    20 // recommended for the cheap VS1838 modules

//#define RECORD_GAP_MICROS 12000 // Activate it for some LG air conditioner protocols
//#define DEBUG // Activate this for lots of lovely debug output from the decoders.

#include "PinDefinitionsAndMore.h" //Define macros for input and output pin etc.
#include <IRremote.hpp>
#define IR_RECEIVE_PIN          14 // D5
#define IR_SEND_PIN             12 // D6 - D4/pin 2 is internal LED
//+=============================================================================

将IR_RECEIVE_PIN后的14改为红外接收器的接收管脚，
将IR_SEND_PIN后的12改为红外发射器的发射管脚
最终是

#include <Arduino.h>

#define RAW_BUFFER_LENGTH  750  // 750 is the value for air condition remotes.

/*
 * You can change this value accordingly to the receiver module you use.
 * The required value can be derived from the timings printed here.
 * Keep in mind that the timings may change with the distance
 * between sender and receiver as well as with the ambient light intensity.
 */
#define MARK_EXCESS_MICROS    20 // recommended for the cheap VS1838 modules

//#define RECORD_GAP_MICROS 12000 // Activate it for some LG air conditioner protocols
//#define DEBUG // Activate this for lots of lovely debug output from the decoders.

#include "PinDefinitionsAndMore.h" //Define macros for input and output pin etc.
#include <IRremote.hpp>
#define IR_RECEIVE_PIN          6 // D5
#define IR_SEND_PIN             3 // D6 - D4/pin 2 is internal LED
//+=============================================================================

然后保存

确定，在选定目录上新建一个同名文件夹

存储任何ino(Arduino)文件时都不能使用中文名

进入文件夹，保存，上传

打开串口监视器，波特率ino文件中是115200。

对遥控器的开关键进行解码

Result as microseconds array - compensated with MARK_EXCESS_MICROS=20
uint16_t rawData[229] = {很多数};  // Protocol=UNKNOWN Hash=0x24B61CFE 115 bits (incl. gap and start) received

复制中间的一串数到记事本内。

2.2 SendRawDemo

同样打开SendRawDemo示例，进行更改
在代码中的#include <IRremote.hpp>后添加2行

#include <Arduino.h>

#include "PinDefinitionsAndMore.h" //Define macros for input and output pin etc.
#include <IRremote.hpp>
// On the Zero and others we switch explicitly to SerialUSB
#if defined(ARDUINO_ARCH_SAMD)
#define Serial SerialUSB
#endif
}

改成(增加IR_RECEIVE_PIN 6和IR_SEND_PIN 3的设置)

#include <Arduino.h>

#include "PinDefinitionsAndMore.h" //Define macros for input and output pin etc.
#include <IRremote.hpp>
#define IR_RECEIVE_PIN          6 // 自行设置
#define IR_SEND_PIN             3 // 自行设置
// On the Zero and others we switch explicitly to SerialUSB
#if defined(ARDUINO_ARCH_SAMD)
#define Serial SerialUSB
#endif

然后更改下面代码。

    const uint16_t rawData[] = { 9000, 4500/*Start bit*/, 560, 560, 560, 560, 560, 1690, 560,
            560/*0010 0x4 of 16 bit address LSB first*/, 560, 560, 560, 560, 560, 560, 560, 560/*0000*/, 560, 1690, 560, 1690, 560,
            560, 560, 1690/*1101 0xB*/, 560, 1690, 560, 1690, 560, 1690, 560, 1690/*1111*/, 560, 560, 560, 560, 560, 560, 560,
            1690/*0001 0x08 of command LSB first*/, 560, 560, 560, 560, 560, 560, 560, 560/*0000 0x00*/, 560, 1690, 560, 1690, 560,
            1690, 560, 560/*1110 Inverted 8 of command*/, 560, 1690, 560, 1690, 560, 1690, 560, 1690/*1111 inverted 0 of command*/,
            560 /*stop bit*/}; // Using exact NEC timing
    IrSender.sendRaw(rawData, sizeof(rawData) / sizeof(rawData[0]), NEC_KHZ); // Note the approach used to automatically calculate the size of the array.

将复制的源码在记事本中分成2段，第一段为偶数个数值，第二段可以为奇数个数值；
将代码更改为

    const uint16_t rawData0[] = { 3080,2970, 3080,4370, 580,1570, 580,520, 580,1620, 580,520, 580,520, 530,1620, 580,1620, 580,520, 530,1620, 580,520, 530,1670, 580,1570, 580,520, 580,520, 530,570, 580,520, 530,520, 580,520, 580,520, 530,1670, 580,520, 530,1620, 580,520, 580,1570, 580,520, 580,520, 480,620, 580,520, 580,470, 530,570, 580,520, 480,620, 580,520, 580,1570, 580,1620, 530,570, 580,1570, 530,570, 580,520, 530,1620, 580,520, 580,1620, 580,1620, 530,520, 580,1620, 530,1670, 580,470, 580,520, 580,520, 530,570, 580,520, 580,470, 580,520, 580,520, 580,520, 580,520, 580,470
    }; // Using exact NEC timing
    const uint16_t rawData1[] = { 580,520, 580,1620, 530,570, 580,520, 580,470, 580,520, 580,520, 530,570, 580,520, 580,470, 580,520, 580,520, 580,520, 530,570, 580,470, 580,520, 580,520, 580,520, 530,570, 580,520, 580,470, 580,520, 580,520, 530,570, 580,520, 580,470, 580,520, 580,520, 580,520, 480,620, 580,470, 580,520, 580,520, 580,520, 530,570, 580,520, 580,470, 530,570, 580,520, 480,620, 580,520, 580,470, 530,570, 580,520, 580,520, 530,570, 580,1570, 580,520, 580,1620, 530,1620, 580,520, 580,520, 580,520, 580,470, 580,1620, 580
    }; // Using exact NEC timing
    IrSender.sendRaw(rawData0, sizeof(rawData0) / sizeof(rawData0[0]), NEC_KHZ); // Note the approach used to automatically calculate the size of the array.
    IrSender.sendRaw(rawData1, sizeof(rawData1) / sizeof(rawData1[0]), NEC_KHZ); // Note the approach used to automatically calculate the size of the array.

保存代码，上传。成功！