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arduino学习笔记8 - 数字骰子实验

2014-10-23 17:38:42 7445 Arduino

0 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 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); } } 0
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