Arduino 四位数码管控制
2024-05-23 10:21:30
材料
| 物品 | 个数 |
|---|---|
| Arduino UNO | 1 |
| 按钮 | 3 |
| 共阳极四位数码管 | 1 |
| 双公口杜邦线 | 若干 |
| 面包板 | 1 |
功能设计
- 时间显示
- 调节时间
接线
D1表示加粗的引脚
| Arduino | 四位数码管 |
|---|---|
| 2 | a |
| 3 | b |
| 4 | c |
| 5 | d |
| 6 | e |
| 7 | f |
| 8 | g |
| 9 | dp |
| 10 | D1 |
| 11 | D2 |
| 12 | D3 |
| 13 | D4 |
| 按键 | Arduino |
|---|---|
| 引脚1 | 模拟引脚 |
| 引脚2 | GND |
| 按键 | Arduino |
|---|---|
| 按键1 引脚1 | A0 |
| 按键2引脚1 | A1 |
| 按键3 引脚1 | A2 |
效果
Arduino 四位数码管控制（简单时钟）
程序
int a = 2;
int b = 3;
int c = 4;
int d = 5;
int e = 6;
int f = 7;
int g = 8;
int dp = 9;
//设置阳极接口
int d4 = 13;
int d3 = 12;
int d2 = 11;
int d1 = 10;
//设置按钮接口
int y_button=A0;
int b_button=A1;
int g_button=A2;unsigned long times=0;
int m=0;
int h=0;int i=0,j=0,x=0,y=0;
int flag=0;
bool flag2=true;
int set=0;
void setup()
{pinMode(d1, OUTPUT);pinMode(d2, OUTPUT);pinMode(d3, OUTPUT);pinMode(d4, OUTPUT);pinMode(a, OUTPUT);pinMode(b, OUTPUT);pinMode(c, OUTPUT);pinMode(d, OUTPUT);pinMode(e, OUTPUT);pinMode(f, OUTPUT);pinMode(g, OUTPUT);pinMode(dp, OUTPUT);pinMode(y_button,INPUT_PULLUP);//设置为上拉输入模式pinMode(b_button,INPUT_PULLUP);pinMode(g_button,INPUT_PULLUP);Serial.begin(9600);
}
/
void loop()
{ if(digitalRead(y_button)==LOW){Serial.println("y");set++;while(digitalRead(y_button)==LOW);//消抖}if(digitalRead(b_button)==LOW){set--;while(digitalRead(b_button)==LOW);}if(digitalRead(g_button)==LOW){flag++;while(digitalRead(g_button)==LOW);}if(flag==0){h=set;m=0;flag2=true;}else if(flag==1){m=set;}else{while(flag2){flag=0;set=0;clocks();if(digitalRead(g_button)==LOW){flag2=false;while(digitalRead(g_button)==LOW);}}}Xian_Shi(); }
///
void clocks(){//时钟逻辑Xian_Shi();if(millis()-times>59000){m++;times=millis();Serial.print(x);Serial.print(y);Serial.print(" ");Serial.print(i);Serial.print(j);Serial.println();}if(m>59){h++;m=0;}if(h>23){h=0;}
}void Xian_Shi(){//数码管显示if(m>9){i=m/10;j=m%10;}else{j=m;i=0;}if(h>9){x=h/10;y=h%10;}else{y=h;x=0;}Display(1, x);Display(2, y);Display(3, i);Display(4, j);
}
void WeiXuan(unsigned char n)//数码管位数选择
{switch(n){case 1:digitalWrite(d1,HIGH);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, LOW); break;case 2:digitalWrite(d1, LOW);digitalWrite(d2, HIGH);digitalWrite(d3, LOW);digitalWrite(d4, LOW);break;case 3:digitalWrite(d1,LOW);digitalWrite(d2, LOW);digitalWrite(d3, HIGH);digitalWrite(d4, LOW);break;case 4:digitalWrite(d1, LOW);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, HIGH);break;default :digitalWrite(d1, LOW);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, LOW);break;}
}
void Num_0()//数字0
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, HIGH);digitalWrite(dp,HIGH);
}
void Num_1()
{digitalWrite(a, HIGH);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(dp,HIGH);
}
void Num_2()
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, HIGH);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, HIGH);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_3()
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_4()
{digitalWrite(a, HIGH);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_5()
{digitalWrite(a, LOW);digitalWrite(b, HIGH);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_6()
{digitalWrite(a, LOW);digitalWrite(b, HIGH);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_7()
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(dp,HIGH);
}
void Num_8()
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Num_9()
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(dp,HIGH);
}
void Clear() //清屏
{digitalWrite(a, HIGH);digitalWrite(b, HIGH);digitalWrite(c, HIGH);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(dp,HIGH);
}
void pickNumber(unsigned char n)//选择数字
{switch(n){case 0:Num_0();break;case 1:Num_1();break;case 2:Num_2();break;case 3:Num_3();break;case 4:Num_4();break;case 5:Num_5();break;case 6:Num_6();break;case 7:Num_7();break;case 8:Num_8();break;case 9:Num_9();break;default:Clear();break;}
}
void Display(unsigned char x, unsigned char Number)//显示x为坐标，Number为数字
{WeiXuan(x);pickNumber(Number);delay(1);Clear();
}//控制数码管显示数字
int a=2,b=3,c=4,d=5,e=6,f=7,g=8,dp=9,d1=10,d2=11,d3=12,d4=13;
void setup()
{for(int i=0;i<14;i++)pinMode(i,OUTPUT);for(int i=0;i<14;i++)digitalWrite(i,LOW);}
void loop()
{LED(4321);//显示4321
}
void LED(int x)
{int g,s,b,q;q=x/1000;x%=1000;b=x/100;x%=100;s=x/10;x%=10;g=x;int y[4]={q,b,s,g};for(int i=0;i<4;i++);{D(i);switch(y[i]){case 0:Num_0;break;case 1:Num_1;break;case 2:Num_2;break;case 3:Num_3;break;case 4:Num_4;break;case 5:Num_5;break;case 6:Num_6;break;case 7:Num_7;break;case 8:Num_8;break;case 9:Num_9;}delay(1);}
}
void Num_0()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,LOW);
}
void Num_1()
{digitalWrite(a,LOW);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,LOW);digitalWrite(g,LOW);}
void Num_2()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,LOW);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,LOW);digitalWrite(g,HIGH);
}
void Num_3()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,LOW);digitalWrite(f,LOW);digitalWrite(g,HIGH);
}
void Num_4()
{digitalWrite(a,LOW);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,HIGH);digitalWrite(g,HIGH);
}
void Num_5()
{digitalWrite(a,HIGH);digitalWrite(b,LOW);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,LOW);digitalWrite(f,HIGH);digitalWrite(g,HIGH);
}
void Num_6()
{digitalWrite(a,HIGH);digitalWrite(b,LOW);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,HIGH);
}
void Num_7()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,LOW);digitalWrite(e,LOW);digitalWrite(f,LOW);digitalWrite(g,LOW);
}
void Num_8()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,HIGH);digitalWrite(f,HIGH);digitalWrite(g,HIGH);
}
void Num_9()
{digitalWrite(a,HIGH);digitalWrite(b,HIGH);digitalWrite(c,HIGH);digitalWrite(d,HIGH);digitalWrite(e,LOW);digitalWrite(f,HIGH);digitalWrite(g,HIGH);
}
void D(int y)
{switch(y){case 0:digitalWrite(d1,HIGH);digitalWrite(d2,LOW);digitalWrite(d3,LOW);digitalWrite(d4,LOW);break;case 1:digitalWrite(d1,LOW);digitalWrite(d2,HIGH);digitalWrite(d3,LOW);digitalWrite(d4,LOW);break;case 2:digitalWrite(d1,LOW);digitalWrite(d2,LOW);digitalWrite(d3,HIGH);digitalWrite(d4,LOW);break;case 3:digitalWrite(d1,LOW);digitalWrite(d2,LOW);digitalWrite(d3,LOW);digitalWrite(d4,HIGH);break;default :digitalWrite(d1,LOW);digitalWrite(d2,LOW);digitalWrite(d3,LOW);digitalWrite(d4,LOW);}
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