Arduino 红外遥控实验 -接收

1.

线路连接：

红外接收 vcc 接 arduino 5v

红外接收 gnd 接 arduino gnd

红外接收 vout 接 arduino 11

led 正极 接 arduino 8

led 正极 接 arduino gnd

2. code

/** IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv* An IR detector/demodulator must be connected to the input RECV_PIN.* Version 0.1 July, 2009* Copyright 2009 Ken Shirriff* http://arcfn.com*/#include int RECV_PIN = 11;
int led_PIN = 8;
IRrecv irrecv(RECV_PIN);
String resultValueStr;
decode_results results;void setup()
{Serial.begin(9600);pinMode(led_PIN,OUTPUT);// In case the interrupt driver crashes on setup, give a clue// to the user what's going on.Serial.println("Enabling IRin");irrecv.enableIRIn(); // Start the receiverSerial.println("Enabled IRin");
}void loop() {if (irrecv.decode(&results)) {Serial.print("接收到的十六进制：  ");Serial.println(results.value, HEX); // 接收到的十六进制的值resultValueStr = results.value; // 接收到的十进制的值Serial.print("接收到的十进制：  ");Serial.println(resultValueStr);if(resultValueStr == "2534850111"){Serial.println("灯亮");digitalWrite(led_PIN,HIGH);}if(resultValueStr == "1033561079"){Serial.println("灯灭");digitalWrite(led_PIN,LOW);}irrecv.resume(); // Receive the next value}delay(100);
}

效果如图所示： 按下遥控器 1 键 led 灯亮， 2 键 led 灯灭

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