案例

最近测通了很多传感器，记录个整理的简单案例代码：

/*
 *遥控程序
 */

#include <IRremote.h>     // IRremote库声明  

int RECV_PIN = 3;        //定义红外接收器的引脚为11

int buzzer = 7; //设置控制蜂鸣器的数字IO脚

IRrecv irrecv(RECV_PIN);
decode_results results;

long control[7][3] = {//遥控器矫正数字
  {16580863, 16613503, 16597183},
  {16589023, 16621663, 16605343},
  {16584943, 16617583, 16601263},
  {16593103, 16625743, 16609423},
  {16582903, 16615543, 16599223},
  {16591063, 16623703, 16607383},
  {16586983, 16619623, 16603303}
};

int LED = 13;//13号灯

int LED6 = 6;//6号灯

void openLight()
{
  digitalWrite(LED, HIGH);
  digitalWrite(LED6, HIGH);
  delay(500);
  digitalWrite(LED, LOW);
  digitalWrite(LED6, LOW);
}

void openDuang(int count,int fq) {
  //digitalWrite(buzzer,HIGH);//发声音
  for (int i = 0;i < count; i++) //输出一个频率的声音
  {
    digitalWrite(buzzer, HIGH); //发声音
    delay(fq);//延时1ms
    digitalWrite(buzzer, LOW); //不发声音
    delay(fq);//延时ms
  }
}

void openLightLong()
{
  digitalWrite(LED, HIGH);
  digitalWrite(LED6, HIGH);
}


void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // 启动接收器
  pinMode(LED, OUTPUT);
  pinMode(LED6, OUTPUT);
  pinMode(buzzer, OUTPUT); //设置数字IO脚模式，OUTPUT为输出
}

void loop() {
  if (irrecv.decode(&results))
  {
    Serial.println(results.value, HEX);//以16进制换行输出接收代码
    if (results.value == 4294967295) {
      //long click
      openLightLong();
      openDuang(1000,1);
    } else {
      if (results.value == control[0][0]) {
        openLight();
        openDuang(80,1);
      } else if (results.value == control[0][1]) {
        openLight();
      } else if (results.value == control[0][2]) {
        openLight();
      } else if (results.value == control[1][0]) {
        openLight();
      } else if (results.value == control[1][1]) {
        openLight();
      } else if (results.value == control[1][2]) {
        openLight();
      } else if (results.value == control[2][0]) {
        openLight();
      } else if (results.value == control[2][1]) {
        openLight();
      } else if (results.value == control[2][2]) {
        openLight();
      } else if (results.value == control[3][0]) {
        openLight();
        openDuang(80,0);//0
      } else if (results.value == control[3][1]) {
        openLight();
      } else if (results.value == control[3][2]) {
        openLight();
      } else if (results.value == control[4][0]) {
        openLight();
        openDuang(80,1);
      } else if (results.value == control[4][1]) {
        openLight();
        openDuang(80,2);
      } else if (results.value == control[4][2]) {
        openLight();
        openDuang(80,3);
      } else if (results.value == control[5][0]) {
        openLight();
        openDuang(80,4);
      } else if (results.value == control[5][1]) {
        openLight();
        openDuang(80,5);
      } else if (results.value == control[5][2]) {
        openLight();
        openDuang(80,6);
      } else if (results.value == control[6][0]) {
        openLight();
        openDuang(80,7);
      } else if (results.value == control[6][1]) {
        openLight();
        openDuang(80,8);
      } else if (results.value == control[6][2]) {
        openLight();
        openDuang(80,9);
      }
    }
    irrecv.resume(); // 接收下一个值
  }
  delay(100);
}

效果图：

蜂鸣器接线：

1 = GND

2 = S I/O 1-13