arduino学习笔记13 - 4位数码管实验 - 第2页 - Arduino - 极客工坊

hk386 发表于 2012-10-8 17:53:59

我试过模拟口当数字用，可是好象不能用，电压好象才2.几伏而已，是要加上拉电阻吗

弘毅发表于 2012-10-8 18:33:30

hk386 发表于 2012-10-8 17:53 static/image/common/back.gif
我试过模拟口当数字用，可是好象不能用，电压好象才2.几伏而已，是要加上拉电阻吗

{:soso_e103:} 你是怎么使用的？我试过驱动其他传感器。。。貌似和D口没区别。直接一样用。

hk386 发表于 2012-10-9 09:31:43

解决了模拟当数字使用了，都快忘记AVR的使用了，谢谢了啊

tgyfish 发表于 2012-12-20 13:03:27

我一直觉得数码管的动态显示是个奇葩~知道什么意思从来不会写

chyy-geek 发表于 2013-2-9 21:43:54

非常用心,程式撰寫非常清楚

Mei_Ling 发表于 2013-3-27 15:57:13

根据硬件连接图接了，怎么登不亮？是不是需要接GND？谁可以帮忙解决我的问题....

弘毅发表于 2013-3-27 21:29:02

Mei_Ling 发表于 2013-3-27 15:57 static/image/common/back.gif
根据硬件连接图接了，怎么登不亮？是不是需要接GND？谁可以帮忙解决我的问题....

4位数码管的管脚定义有好几种。。如果买到的刚好是和帖子里不一样引脚定义的，那就按照帖子接线就没法驱动了。

Mei_Ling 发表于 2013-3-28 13:29:45

谢谢！
我的数位数码管型号是CAI5461AH，外观和帖子的一样，不知帖子里的是不是和我的型号一样？

弘毅发表于 2013-3-28 15:00:06

Mei_Ling 发表于 2013-3-28 13:29 static/image/common/back.gif
谢谢！
我的数位数码管型号是CAI5461AH，外观和帖子的一样，不知帖子里的是不是和我的型号一样？

这个需要看引脚定义，你如果有你管子的引脚定义图，可以发上来。。大家看看

Mei_Ling 发表于 2013-3-28 22:12:15

没有管子的引脚定义图 :L
我在试试看，谢谢你了！

玄冰之神 发表于 2013-4-16 16:31:27

:P:P:P这样回复能到高级会员不。。

庚影！ 发表于 2013-7-6 21:45:26

本帖最后由庚影！于 2013-7-6 21:56 编辑

用楼主的秒表代码出现一个问题就是所有数值显示为0无法变化
稍微修改了下能运行了时间也不用去调整了
不过我也是新人不知道如何DEBUG所以也没找到是哪的问题。。{:soso_e142:}

//设置阴极接口
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int p = 8;
//设置阳极接口
int d4 = 9;
int d3 = 10;
int d2 = 11;
int d1 = 12;
//设置变量
long n = 0;
long n10 = 0;
long n100 = 0;
long n1000 = 0;
int x = 100;
int del = 55;//此处数值对时钟进行微调

byte segs = { a, b, c, d, e, f, g };

byte seven_seg_digits = { { 0,0,0,0,0,0,1 },// = 0
                              { 1,0,0,1,1,1,1 },// = 1
                              { 0,0,1,0,0,1,0 },// = 2
                              { 0,0,0,0,1,1,0 },// = 3
                              { 1,0,0,1,1,0,0 },// = 4
                              { 0,1,0,0,1,0,0 },// = 5
                              { 0,1,0,0,0,0,0 },// = 6
                              { 0,0,0,1,1,1,1 },// = 7
                              { 0,0,0,0,0,0,0 },// = 8
                              { 0,0,0,0,1,0,0 } // = 9
                        };

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(p, OUTPUT);
}

void loop()
{

   long w = millis()/100;
//这个是调用时间的函数
shownum(w);
}

void pickDigit(int x)//定义pickDigit(x),其作用是开启dx端口
{
digitalWrite(d1, LOW);
digitalWrite(d2, LOW);
digitalWrite(d3, LOW);
digitalWrite(d4, LOW);

switch(x)
{
case 1:
digitalWrite(d1, HIGH);
break;
case 2:
digitalWrite(d2, HIGH);
break;
case 3:
digitalWrite(d3, HIGH);
break;
default:
digitalWrite(d4, HIGH);
break;
}
}

void dispDec(int x)//设定开启小数点
{
digitalWrite(p, LOW);
}

void clearLEDs()//清屏
{
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
digitalWrite(p, HIGH);
}

// 点亮对应数字的数码管
void lightSegments(int x) {
for (int i = 0; i < 7; i++) {
digitalWrite(segs, seven_seg_digits);
}
}

//这边是新加的函数其实和楼主貌似差不多但是为啥楼主的会出问题我也不知道
void shownum (int x)
{

long x1 = x/1000%10;
long x10 = x/100%10;
long x100 = x/10%10;
long x1000 = x/1%10;

clearLEDs();
pickDigit(1);
lightSegments(x1);
delayMicroseconds(del);

clearLEDs();
pickDigit(2);
lightSegments(x10);
delayMicroseconds(del);

clearLEDs();
pickDigit(3);
dispDec(3);
lightSegments(x100);
delayMicroseconds(del);

clearLEDs();
pickDigit(0);
lightSegments(x1000);
delayMicroseconds(del);
}

enzotim 发表于 2013-7-20 13:43:08

注意啦有些是共阴的，把楼主代码HIGH 和LOW 调转就可以啦

enzotim 发表于 2013-7-20 13:45:10

本帖最后由 enzotim 于 2013-7-20 13:46 编辑

共阴代码。。。。。。。。。
//设置阴极接口

int a = 1;

int b = 2;

int c = 3;

int d = 4;

int e = 5;

int f = 6;

int g = 7;

int p = 8;

//设置阳极接口

int d4 = 9;

int d3 = 10;

int d2 = 11;

int d1 = 12;

//设置变量

long n = 0;

int x = 100;

int del = 55;//此处数值对时钟进行微调

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(p, OUTPUT);

}

void loop()

{

clearLEDs();

pickDigit(1);

pickNumber((n/x/1000)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(2);

pickNumber((n/x/100)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(3);

dispDec(3);

pickNumber((n/x/10)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(4);

pickNumber(n/x%10);

delayMicroseconds(del);

n++;

if (digitalRead(13) == LOW)

{

n = 0;

}

}

void pickDigit(int x)//定义pickDigit(x),其作用是开启dx端口

{

digitalWrite(d1, HIGH);

digitalWrite(d2, HIGH);

digitalWrite(d3, HIGH);

digitalWrite(d4, HIGH);

switch(x)

{

case 1:

digitalWrite(d1, LOW);

break;

case 2:

digitalWrite(d2, LOW);

break;

case 3:

digitalWrite(d3, LOW);

break;

default:

digitalWrite(d4, LOW);

break;

}

}

void pickNumber(int x) //定义pickNumber(x),其作用是显示数字x

{

switch(x)

{

default:

zero();

break;

case 1:

one();

break;

case 2:

two();

break;

case 3:

three();

break;

case 4:

four();

break;

case 5:

five();

break;

case 6:

six();

break;

case 7:

seven();

break;

case 8:

eight();

break;

case 9:

nine();

break;

}

}

void dispDec(int x)//设定开启小数点

{

digitalWrite(p, HIGH);

}

void clearLEDs()//清屏

{

digitalWrite(a, LOW);

digitalWrite(b, LOW);

digitalWrite(c, LOW);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

digitalWrite(p, LOW);

}

void zero()//定义数字0时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, LOW);

}

void one()//定义数字1时阴极那些管脚开关

{

digitalWrite(a, LOW);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

}

void two()//定义数字2时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, LOW);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, LOW);

digitalWrite(g, HIGH);

}

void three()//定义数字3时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, HIGH);

}

void four()//定义数字4时阴极那些管脚开关

{

digitalWrite(a, LOW);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void five()//定义数字5时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, LOW);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void six()//定义数字6时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, LOW);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void seven()//定义数字7时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

}

void eight()//定义数字8时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void nine()//定义数字9时阴极那些管脚开关

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

火红枫叶 发表于 2013-8-10 18:15:37

enzotim 发表于 2013-7-20 13:45 static/image/common/back.gif
共阴代码。。。。。。。。。
//设置阴极接口

我的数码管就是共阴的，比如楼主的第一段代码，该亮的灭，该灭的亮！

感谢分享代码！

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