红外遥控数码管

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 //项目十三 - 红外遥控数码管#include <IRremote.h>      //调用IRremote.h库int RECV_PIN = 11;         //定义RECV_PIN变量为11IRrecv irrecv(RECV_PIN);   //设置RECV_PIN（也就是11引脚）为红外接收端decode_results results;    //定义results变量为红外结果存放位置int currentNumber = 0;     //该变量用于存放当前数字long codes[12]=             //该数组用来存放红外遥控器发出的红外码{   0xFD30CF,0xFD08F7,               // 0 ,1   0xFD8877,0xFD48B7,               // 2 ,3   0xFD28D7,0xFDA857,               // 4 ,5   0xFD6897,0xFD18E7,               // 6 ,7   0xFD9867,0xFD58A7,               // 8 ,9   0xFD20DF,0xFD609F,               // 前进 ,后退};int number[10][8] =            //该数组用来存放数码管显示的数字{  {0,0,0,1,0,0,0,1},//0  {0,1,1,1,1,1,0,1},//1  {0,0,1,0,0,0,1,1},//2  {0,0,1,0,1,0,0,1},//3  {0,1,0,0,1,1,0,1},//4  {1,0,0,0,1,0,0,1},//5  {1,0,0,0,0,0,0,1},//6  {0,0,1,1,1,1,0,1},//7  {0,0,0,0,0,0,0,1},//8  {0,0,0,0,1,1,0,1} //9};void numberShow(int i) {                  //该函数用来让数码管显示数字  for(int pin = 2; pin <= 9 ; pin++){     digitalWrite(pin, number[i][pin - 2]);  }}void setup(){  Serial.begin(9600);            //设置波特率为9600  irrecv.enableIRIn();           //启动红外解码    for(int pin = 2 ; pin <= 9 ; pin++){   //设置数字引脚2~9为输出模式      pinMode(pin, OUTPUT);      digitalWrite(pin, HIGH);  }}void loop() {  //判断是否接收到解码数据,把接收到的数据存储在变量results中  if (irrecv.decode(&results)) {      for(int i = 0; i <= 11; i++){         //判断是否接收到0~9按键的红外码         if(results.value == codes[i]&& i <= 9){               numberShow(i);  //在数码管上对应显示0~9               currentNumber = i;  //把当前显示的值赋给变量currentNumber               Serial.println(i);               break;                 }                  //判断是否接收到递减的红外码，并且当前值不为0         else if(results.value == codes[10]&& currentNumber != 0){               currentNumber--;                 //当前值递减               numberShow(currentNumber);       //数码管显示递减后的值               Serial.println(currentNumber);  //串口输出递减后的值               break;                 }                  //判断是否接收到递增的红外码，并且当前值不为9         else if(results.value == codes[11]&& currentNumber != 9){               currentNumber++;                 //当前值递增               numberShow(currentNumber);       //数码管显示递增后的值               Serial.println(currentNumber);  //串口输出递增后的值               break;                     }    }        Serial.println(results.value, HEX);  //串口监视器查看红外码   irrecv.resume();   //等待接收下一个信号   }}
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