arduino数码管

最新推荐文章于 2024-08-11 16:05:22 发布

是南巷的花猫啊

最新推荐文章于 2024-08-11 16:05:22 发布

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分类专栏： arduino开发学习文章标签： arduino

本文链接：https://blog.youkuaiyun.com/nanxiang11/article/details/118841307

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上代码

void select(int a){
  switch (a) {
      case '1':
          digitalWrite(2, LOW);
          digitalWrite(3, HIGH);
          digitalWrite(4, HIGH);
          digitalWrite(5, HIGH);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, HIGH);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '2':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, HIGH);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, HIGH);
          digitalWrite(8, LOW);
          digitalWrite(9, LOW);
          digitalWrite(10, HIGH);
          break;
      case '3':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, HIGH);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '4':
          digitalWrite(2, LOW);
          digitalWrite(3, HIGH);
          digitalWrite(4, LOW);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, HIGH);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '5':
          digitalWrite(2, HIGH);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break; 
      case '6':
          digitalWrite(2, HIGH);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, LOW);
          digitalWrite(6, LOW);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, LOW);
          digitalWrite(10, LOW);
          break;
      case '7':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, HIGH);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, HIGH);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '8':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '9':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, LOW);
          digitalWrite(6, HIGH);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
      case '0':
          digitalWrite(2, LOW);
          digitalWrite(3, LOW);
          digitalWrite(4, LOW);
          digitalWrite(5, HIGH);
          digitalWrite(6, LOW);
          digitalWrite(7, LOW);
          digitalWrite(8, LOW);
          digitalWrite(9, LOW);
          digitalWrite(10, LOW);
          break;                       
      default:
          digitalWrite(2, HIGH);
          digitalWrite(3, HIGH);
          digitalWrite(4, HIGH);
          digitalWrite(5, HIGH);
          digitalWrite(6, HIGH);
          digitalWrite(7, HIGH);
          digitalWrite(8, HIGH);
          digitalWrite(9, HIGH);
          digitalWrite(10, HIGH);
          break;
  } 
}

void setup() {
  Serial.begin(9600); 
  Serial.println("串口已经打开！！！");
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
}

void loop() {
  if (Serial.available()){
    char  serialData = Serial.read();    // 将接收到的信息使用readString()存储于serialData变量
    Serial.print("Received Serial Data: ");     // 然后通过串口监视器输出serialData变量内容
    Serial.println(serialData);
    select(serialData);
    delay(1000);
    }else{
      select(11);
    }
  
}

效果图
在这里插入图片描述