从零开始 开关计数器（4位数码管的控制）
本帖最后由 hxf 于 2015-7-7 17:03 编辑楼主有一个朋友最近购置了一批游乐设施，想知道这些设施每天的工作情况，于是拜托楼主做一个计数器，记录下开机次数和开机时间。
初步方案（方案一）：3641共阳极四位数码管+arduino+开关 实现简单的计数功能并显示
先查阅了一些关于数码管的资料，推荐一个讲的比较详细的 http://bbs.elecfans.com/jishu_455250_1_1.html
接下来是接线，只需要在原图上稍作改动即可：
程序同样是在原作者程序上稍作了些改动，感谢开源的arduino：
//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 number=0;
int state;//当前开关状态
int old_state;//前时刻开关状态
int Button=13;
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);
pinMode(Button,INPUT);
}
void loop()
{
state=digitalRead(Button);
if(state!=old_state)number=number++;
screen(number/2);
old_state=state;
}
void screen(int n)
{
clearLEDs();
pickDigit(1);
pickNumber((n/1000)%10);
clearLEDs();
pickDigit(2);
pickNumber((n/100)%10);
clearLEDs();
pickDigit(3);
pickNumber((n/10)%10);
clearLEDs();
pickDigit(4);
pickNumber(n%10);
}
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 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, 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);
}
void zero()//定义数字0时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
}
void one()//定义数字1时阴极那些管脚开关
{
digitalWrite(a, HIGH);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
}
void two()//定义数字2时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
digitalWrite(g, LOW);
}
void three()//定义数字3时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, LOW);
}
void four()//定义数字4时阴极那些管脚开关
{
digitalWrite(a, HIGH);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
}
void five()//定义数字5时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
}
void six()//定义数字6时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
}
void seven()//定义数字7时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
}
void eight()//定义数字8时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
}
void nine()//定义数字9时阴极那些管脚开关
{
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
} 程序写得很详细，但是这样写太麻烦了吧？ eysajan 发表于 2015-7-7 17:05 static/image/common/back.gif
程序写得很详细，但是这样写太麻烦了吧？
恩，也可以自己尝试建立库文件 本帖最后由 eysajan 于 2015-7-7 17:25 编辑
hxf 发表于 2015-7-7 17:09 static/image/common/back.gif
恩，也可以自己尝试建立库文件
也没必要库文件，没必要每一个数字设计几行代码，用for循环可以简化接口定义和输出状态。用字符串可以设定每一个数字的高低电平，那样可以把这个程序简化好多。这是我做的温度控制器方案，参考一下。
#include <Arduino.h>
#define termo A0
#define Reli0
#define Reli1 1
#define Put_A 2
#define Put_B 3
#define Put_C 4
#define Put_D 5
#define Put_E 6
#define Put_F 7
#define Put_G 8
#define Put_H 9
#define Hane1 10
#define Hane2 11
#define Hane3 12
#define Hane4 13
int tengshek=0;
int asti=0;
int usti=0;
int chong=40;
int kichik=20;
int halet=0;
int ter = 0;
int temp = 0;
unsigned char jedwel =
{/*
aaaaaaa
ff bb
ff bb
ff bb
ggggggg
ee cc
ee cc
ee cc
ddddddd hh*/
/*{a, b, c, d, e, f, g }, */
{1, 1, 1, 1, 1, 1, 0 }, //0 0
{0, 1, 1, 0, 0, 0, 0 }, //1 1
{1, 1, 0, 1, 1, 0, 1 }, //2 2
{1, 1, 1, 1, 0, 0, 1 }, //3 3
{0, 1, 1, 0, 0, 1, 1 }, //4 4
{1, 0, 1, 1, 0, 1, 1 }, //5 5
{1, 0, 1, 1, 1, 1, 1 }, //6 6
{1, 1, 1, 0, 0, 0, 0 }, //7 7
{1, 1, 1, 1, 1, 1, 1 }, //8 8
{1, 1, 1, 1, 0, 1, 1 }, //9 9
{1, 1, 1, 0, 1, 1, 1 }, //A 10
{0, 1, 1, 1, 1, 1, 0 }, //U 11
{0, 1, 1, 0, 1, 1, 1 }, //H 12
{0, 0, 0, 0, 0, 0, 1 } //- 13
};
unsigned char hane_jedwel ={{0,1,1,1},{1,0,1,1},{1,1,0,1},{1,1,1,0}};
void setup()
{ pinMode(Put_A, OUTPUT);
pinMode(Put_B, OUTPUT);
pinMode(Put_C, OUTPUT);
pinMode(Put_D, OUTPUT);
pinMode(Put_E, OUTPUT);
pinMode(Put_F, OUTPUT);
pinMode(Put_G, OUTPUT);
pinMode(Put_H, OUTPUT);
pinMode(Reli , OUTPUT);
pinMode(Reli1, OUTPUT);
pinMode(Hane1, OUTPUT);
pinMode(Hane2, OUTPUT);
pinMode(Hane3, OUTPUT);
pinMode(Hane4, OUTPUT);}
void loop()
{ tengshek=analogRead(1);
asti=analogRead(2);
usti=analogRead(3);
ter = analogRead(termo);
temp = ter * 4.8876;
if(temp/10>chong)
digitalWrite(Reli,LOW);
else digitalWrite(Reli,HIGH);
if(temp/10<kichik)
digitalWrite(Reli1,LOW);
else digitalWrite(Reli1,HIGH);
if (tengshek>900)
{delay(20);
halet++;
if (halet==3)
halet=0;};
if (usti>900)
{delay(100);
if(halet==1)
chong++;
else if(halet==2)
kichik++; };
if (asti>900)
{delay(100);
if(halet==1)
chong--;
else if(halet==2)
kichik--; };
switch(halet)
{case 0:
Korsitish(0, 12); //H
delay(3);
Korsitish(1, temp/100%10);
delay(3);
Korsitish(2, temp/10%10);
delay(3);
Korsitish(3, temp%10);
delay(3);
break;
case 1:
Korsitish(0, 11); //U
delay(3);
Korsitish(1, 13); //-
delay(3);
Korsitish(2, chong/10%10);
delay(3);
Korsitish(3, chong%10);
delay(3);
break;
case 2:
Korsitish(0, 10); //A
delay(3);
Korsitish(1, 13); //-
delay(3);
Korsitish(2,kichik/10%10);
delay(3);
Korsitish(3,kichik%10);
delay(3);
break;}}
void Korsitish(int Hane, int reqem)
{ digitalWrite(Put_A, LOW);
digitalWrite(Put_B, LOW);
digitalWrite(Put_C, LOW);
digitalWrite(Put_D, LOW);
digitalWrite(Put_E, LOW);
digitalWrite(Put_F, LOW);
digitalWrite(Put_G, LOW);
digitalWrite(Put_H, LOW);
digitalWrite(Hane1, hane_jedwel);
digitalWrite(Hane2, hane_jedwel);
digitalWrite(Hane3, hane_jedwel);
digitalWrite(Hane4, hane_jedwel);
digitalWrite(Put_A, jedwel);
digitalWrite(Put_B, jedwel);
digitalWrite(Put_C, jedwel);
digitalWrite(Put_D, jedwel);
digitalWrite(Put_E, jedwel);
digitalWrite(Put_F, jedwel);
digitalWrite(Put_G, jedwel);
if(halet==0&&Hane==2)
digitalWrite(Put_H, HIGH);
else digitalWrite(Put_H, LOW);}
来源 http://alip.biz/forum.php?mod=viewthread&tid=35813&extra=page%3D2&page=1 eysajan 发表于 2015-7-7 17:18 static/image/common/back.gif
也没必要库文件，没必要每一个数字设计几行代码，用for循环可以简化接口定义和输出状态。用字符串可以设 ...
牛，很不错的思路啊 eysajan 发表于 2015-7-7 17:18 static/image/common/back.gif
也没必要库文件，没必要每一个数字设计几行代码，用for循环可以简化接口定义和输出状态。用字符串可以设 ...
不过我那样做是因为后期想通过74hc595进行一下IO口扩展 hxf 发表于 2015-7-7 17:40 static/image/common/back.gif
不过我那样做是因为后期想通过74hc595进行一下IO口扩展
用74HC595的话更简单了，代码更短
#include <Arduino.h>
#define tengshex 2
#define asti 3
#define usti 4
#define clockPin5
#define latchPin6
#define reqem 7
#define hane 8
int chong=40;
int kichik=20;
int halet=0;
int ad = 0;
int temp = 0;
//0,1 ,2 , 3 , 4 , 5 , 6 , 7 , 8 ,9
unsigned char reqem_jedwel ={252,96,218,242,102,182,190,224,254,246};
void setup()
{ pinMode(clockPin , OUTPUT);
pinMode(latchPin , OUTPUT);
pinMode(reqem, OUTPUT);
pinMode(hane , OUTPUT);
pinMode(tengshex,INPUT_PULLUP);
pinMode(asti, INPUT_PULLUP);
pinMode(usti, INPUT_PULLUP);}
void loop()
{ if(digitalRead(tengshex) == LOW)
{delay(20);
halet++;
if (halet==3)
halet=0; };
if(digitalRead(asti) == LOW)
{delay(20);
if(halet==1)
chong--;
else if(halet==2)
kichik--; };
if(digitalRead(usti) == LOW)
{delay(100);
if(halet==1)
chong++;
else if(halet==2)
kichik++; };
ad= analogRead(A0);
temp = ad* 4.8876;
switch(halet)
{case 0:
Korsitish(7, 110);
delay(3);
Korsitish(11 , reqem_jedwel);
delay(3);
Korsitish(13 , reqem_jedwel+128);
delay(3);
Korsitish(14, reqem_jedwel);
delay(3);
break;
case 1:
Korsitish(7, 124);
delay(3);
Korsitish(11, 2);
delay(3);
Korsitish(13, reqem_jedwel);
delay(3);
Korsitish(14 , reqem_jedwel);
delay(3);
break;
case 2:
Korsitish(7, 238);
delay(3);
Korsitish(11, 2);
delay(3);
Korsitish(13 ,reqem_jedwel);
delay(3);
Korsitish(14 ,reqem_jedwel);
delay(3);
break;} }
void Korsitish(unsigned char _Hane, unsigned char _reqem)
{ /*if(temp/10<kichik)_Hane&=16;
if(temp/10<chong&&temp/10>kichik) _Hane&=32;
if(temp/10>chong) _Hane&=64;*/
digitalWrite(latchPin,LOW);
shiftOut(hane ,clockPin,MSBFIRST,_Hane);
shiftOut(reqem ,clockPin,MSBFIRST,_reqem);
digitalWrite(latchPin,HIGH); }
占用IO口多，程序又太罗嗦
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