arduino教程系列8-数字骰子实验 arduino入门,arduino教程



前几次做了数码管实验和按键控制LED的实验，通过实验大家已经学会了两种器件的基本用法。这次使用数码管与按键进行组合，做一个简易数字骰子。

数字筛子的基本原理是数码管快速在1-8之间循环跳动，当按下按键时，数码管定格在当前的数字上，不再跳动。



先看一下接线图


Snap5.jpg

2011-7-21 20:00 上传
(135.39 KB)




IMGP9934_调整大小.JPG

2011-7-21 20:00 上传
(186.58 KB)

ARDUINO 代码复制打印

//设置控制各段的数字IO脚
int a=7;
int b=6;
int c=5;
int d=11;
int e=10;
int f=8;
int g=9;
int dp=4;
 
//显示数字1
void digital_1(void)
{
  unsigned char j;
  digitalWrite(c,LOW);//给数字5引脚低电平，点亮c段
  digitalWrite(b,LOW);//点亮b段
  for(j=7;j<=11;j++)//熄灭其余段
    digitalWrite(j,HIGH);
  digitalWrite(dp,HIGH);//熄灭小数点DP段
}
//显示数字2
void digital_2(void)
{
  unsigned char j;
  digitalWrite(b,LOW);
  digitalWrite(a,LOW);
  for(j=9;j<=11;j++)
    digitalWrite(j,LOW);
  digitalWrite(dp,HIGH);
  digitalWrite(c,HIGH);
  digitalWrite(f,HIGH);
}
//显示数字3
void digital_3(void)
{
  unsigned char j;
  digitalWrite(g,LOW);
  digitalWrite(d,LOW);
  for(j=5;j<=7;j++)
    digitalWrite(j,LOW);
  digitalWrite(dp,HIGH);
  digitalWrite(f,HIGH);
  digitalWrite(e,HIGH);
}
//显示数字4
void digital_4(void)
{
  digitalWrite(c,LOW);
  digitalWrite(b,LOW);
  digitalWrite(f,LOW);
  digitalWrite(g,LOW);
  digitalWrite(dp,HIGH);
  digitalWrite(a,HIGH);
  digitalWrite(e,HIGH);
  digitalWrite(d,HIGH);   
}
//显示数字5
void digital_5(void)
{
  unsigned char j;
  for(j=7;j<=9;j++)
    digitalWrite(j,LOW);
  digitalWrite(c,LOW);
  digitalWrite(d,LOW);
  digitalWrite(dp,HIGH);
  digitalWrite(b,HIGH);
  digitalWrite(e,HIGH); 
}
//显示数字6
void digital_6(void)
{
  unsigned char j;
  for(j=7;j<=11;j++)
    digitalWrite(j,LOW);
  digitalWrite(c,LOW);
  digitalWrite(dp,HIGH);
  digitalWrite(b,HIGH);   
}
//显示数字7
void digital_7(void)
{
  unsigned char j;
  for(j=5;j<=7;j++)
    digitalWrite(j,LOW);
  digitalWrite(dp,HIGH);
  for(j=8;j<=11;j++)
    digitalWrite(j,HIGH);
}
//显示数字8
void digital_8(void)
{
  unsigned char j;
  for(j=5;j<=11;j++)
    digitalWrite(j,LOW);
  digitalWrite(dp,HIGH);
}
void setup()
{
    int i;
    for(i=4;i<=11;i++)
    {
    pinMode(i,OUTPUT);//设置4~11口为输出模式
    }
}
void loop()
{  
   while(1)
   {
       digital_1();//显示数字1
       while(analogRead(0)>1000);//如果读到模拟0口的值1000则说明有按键按下
       delay(100);//延时100ms
        digital_2();
        while(analogRead(0)>1000);
       delay(100);
        digital_3();
        while(analogRead(0)>1000);
       delay(100);
        digital_4();
        while(analogRead(0)>1000);
       delay(100);
        digital_5();
        while(analogRead(0)>1000);
       delay(100);
        digital_6();
        while(analogRead(0)>1000);
       delay(100);
        digital_7();
        while(analogRead(0)>1000);
       delay(100);
        digital_8();
        while(analogRead(0)>1000);
       delay(100); 
   }
}

实验的效果如下

via - 极客工坊

标签: Arduino教程