【Arduino】四位数码管显示

• 程序名称：数码管静态显示
• 程序功能：四位数码管显示
• 程序版本：Ver 1.0
• 编写日期：2020/07/30
• 作者信息：天津科技大学创新实验室-JC

/******************************************************************
* 程序名称：数码管静态显示
* 程序功能：四位数码管显示
* 程序版本：Ver 1.0
* 编写日期：2020/07/30
* 作者信息：天津科技大学创新实验室-JC
******************************************************************/

#define   A1   39
#define   B1   43
#define   C1   35
#define   D1   A15
#define   E1   A13
#define   F1   41
#define   G1   37
#define   DP1  33
#define   wei11 3
#define   wei12 0
#define   wei13 1
#define   wei14 2

void setup() {
  // put your setup code here, to run once:
  // 第 1 个数码管引脚
  pinMode(A1,OUTPUT);pinMode(B1,OUTPUT);pinMode(C1,OUTPUT);
  pinMode(D1,OUTPUT);pinMode(E1,OUTPUT);pinMode(F1,OUTPUT);
  pinMode(G1,OUTPUT);pinMode(DP1,OUTPUT);
  pinMode(wei11,OUTPUT);pinMode(wei12,OUTPUT);
  pinMode(wei13,OUTPUT);pinMode(wei14,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  dispyTest();
}

/******************************************************************
* 函数名称：dispy1()
* 函数功能：指定第 1 个数码管的某一位显示某个数字
* 使用示例：dispy1(6,1,1,0,1) //使数码管第三位显示数字6
******************************************************************/
void dispy1(char num, int wei4, int wei3, int wei2, int wei1) {
  digitalWrite(wei11, wei1);
  digitalWrite(wei12, wei2);
  digitalWrite(wei13, wei3);
  digitalWrite(wei14, wei4);
  switch (num) {
    case 1:   digitalWrite(A1,1);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,1); digitalWrite(E1,1);digitalWrite(F1,1);digitalWrite(G1,1);digitalWrite(DP1,1);break;
    case 2:   digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,1);digitalWrite(D1,0); digitalWrite(E1,0);digitalWrite(F1,1);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 3:   digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,1);digitalWrite(F1,1);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 4:   digitalWrite(A1,1);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,1); digitalWrite(E1,1);digitalWrite(F1,0);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 5:   digitalWrite(A1,0);digitalWrite(B1,1);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,1);digitalWrite(F1,0);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 6:   digitalWrite(A1,0);digitalWrite(B1,1);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,0);digitalWrite(F1,0);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 7:   digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,1); digitalWrite(E1,1);digitalWrite(F1,1);digitalWrite(G1,1);digitalWrite(DP1,1);break;
    case 8:   digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,0);digitalWrite(F1,0);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    case 9:   digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,1);digitalWrite(F1,0);digitalWrite(G1,0);digitalWrite(DP1,1);break;
    default:  digitalWrite(A1,0);digitalWrite(B1,0);digitalWrite(C1,0);digitalWrite(D1,0); digitalWrite(E1,0);digitalWrite(F1,0);digitalWrite(G1,1);digitalWrite(DP1,1);break;
  }
  delayMicroseconds(500);
}

/******************************************************************
* 函数名称：dispyClose()
* 函数功能：关闭所有数码管的显示，此时位选无效
******************************************************************/
void dispyClose() {
  digitalWrite(A1,1);digitalWrite(B1,1);digitalWrite(C1,1);digitalWrite(D1,1); digitalWrite(E1,1);digitalWrite(F1,1);digitalWrite(G1,1);digitalWrite(DP1,1);
  delayMicroseconds(500);
}

/******************************************************************
* 函数名称：dispyTest()
* 函数功能：数码管测试函数
******************************************************************/
void dispyTest() {
  dispy1(1,0,0,0,1);delay(500);dispyClose();
  dispy1(2,0,0,1,0);delay(500);dispyClose();
  dispy1(3,0,1,0,0);delay(500);dispyClose();
  dispy1(4,1,0,0,0);delay(500);dispyClose();
  dispy1(5,1,0,0,0);delay(500);dispyClose();
  dispy1(6,0,1,0,0);delay(500);dispyClose();
  dispy1(7,0,0,1,0);delay(500);dispyClose();
  dispy1(8,0,0,0,1);delay(500);dispyClose();
  dispy1(9,1,1,1,1);delay(500);dispyClose();
  dispy1(0,1,1,1,1);delay(500);dispyClose();
}

Ref

1. Arduino 让数码管显示数字
2. 如何实现数码管动态显示带有小数点的数据