單片機圓形led燈流水燈,自己做來玩的（附代碼、pcb、原理圖）

ID:569384 · 發表于 2021-5-7 13:06

我用了一個20腳的芯片，用16個io口掃描60個led燈，
6個com，10個seg，等于是數碼管掃描的原理。

可以切換全滅-->計時模式-->流水燈模式
流水燈模式是遞增全亮然后遞減全滅
我做的板子很小沒有做按鍵，可以自行修改加上按鍵。

Altium Designer畫的原理圖和PCB圖如下：(51hei附件中可下載工程文件)

制作出來的實物圖在本文最后

代碼部分：

#include "單片機頭文件"//自行修改
#include <string.h>
typedef unsigned char u8;
typedef unsigned int u16;
//IO口宏定義，根據自己用的單片機來修改
//6個com口，10個seg口，共16個IO口控制60個led燈
#define COM0 RB0
#define COM1 RB1
#define COM2 RB2
#define COM3 RB3
#define COM4 RB4
#define COM5 RB5
#define COM_ALL(x) (COM0 = COM1 = COM2 = COM3 = COM4 = COM5 = x)
#define LED0 RB6
#define LED1 RB7
#define LED2 RA0
#define LED3 RA1
#define LED4 RA2
#define LED5 RA3
#define LED6 RA4
#define LED7 RA7
#define LED8 RD0
#define LED9 RD1
#define LED_ALL(x) (LED0 = LED1 = LED2 = LED3 = LED4 = LED5 = LED6 = LED7 = LED8 = LED9 = x)
#define KEY_IO (RD6)
void Kscan();
void Off_Clr();
void Led_Mode();
//全局變量
bit B_MainLoop = 0;
u16 Led_Bit[6] = {0};
u16 Count_500ms = 0;
u8 Status = 0;
u8 d_m = 0;
u8 d_n = 0;
bit Change_Flag = 0;
u8 Minute = 0;
u16 Minute_Bit[6] = {0};
u8 Move_Bit = 0;
/***********************************************************
中斷服務函數
***********************************************************/
void 中斷服務函數()//自行修改，我設置的中斷時間為62.5us
{//62.5us
static u8 Dig_Count = 0;
static u8 n = 0;
static u16 m = 0x200;
static u16 Get_Bit = 0;
static u8 MainTime = 0;
//有些定時器不是判斷標志位，而是重裝載值的，根據自己使用的單片機手冊來寫
if(標志位)
{
標志位 = 0;
if(++MainTime >= 32) //25
{//主循環：125us*32=4ms
MainTime = 0;
B_MainLoop = 1;
}
Count_500ms++;
//led燈掃描
Dig_Count++;
if(Dig_Count >= 2)
{
Dig_Count = 0;
LED_ALL(0);
if(Led_Bit[0] & m) {COM0 = 0;}
else {COM0 = 1;}
if(Led_Bit[1] & m) {COM1 = 0;}
else {COM1 = 1;}
if(Led_Bit[2] & m) {COM2 = 0;}
else {COM2 = 1;}
if(Led_Bit[3] & m) {COM3 = 0;}
else {COM3 = 1;}
if(Led_Bit[4] & m) {COM4 = 0;}
else {COM4 = 1;}
if(Led_Bit[5] & m) {COM5 = 0;}
else {COM5 = 1;}
switch(n++)
{
case 0:
LED0 = 1;
m = 0x100;
break;
case 1:
LED1 = 1;
m = 0x80;
break;
case 2:
LED2 = 1;
m = 0x40;
break;
case 3:
LED3 = 1;
m = 0x20;
break;
case 4:
LED4 = 1;
m = 0x10;
break;
case 5:
LED5 = 1;
m = 0x8;
break;
case 6:
LED6 = 1;
m = 0x4;
break;
case 7:
LED7 = 1;
m = 0x2;
break;
case 8:
LED8 = 1;
m = 0x1;
break;
case 9:
LED9 = 1;
m = 0x200;
break;
case 10:n = 0;break;
}
}
}
}
void Kscan()
{
static unsigned char Count = 0;
static volatile bit Key_Task_Flag = 0;//松開標志位
if(!KEY_IO)//按鍵按下
{
if(!Key_Task_Flag)//當前松開，則判斷按鍵
{
Count++;
if(Count >= 3)//消抖次數3
{
Count = 0;
Key_Task_Flag = 1;//松開標志位
//按下執行：
Status++;//切換顯示模式
if(Status > 2)
{Status = 0;}
}
}
}
else
{//按鍵抖動或松開，計數清零，松開標志位清零
Count = 0;
Key_Task_Flag = 0;//松開標志位
}
}
/***********************************************************
主循環
***********************************************************/
void main()
{
Status = 0;//燈模式
while(1)
{
asm("clrwdt");
if(B_MainLoop)
{//4ms
B_MainLoop = 0;
Kscan();
Led_Mode();
}
}
}
void Off_Clr()
{//關機清理
memset(Led_Bit,0,sizeof(Led_Bit));
d_m = 0;d_n = 0;
Change_Flag = 0;
Minute = 0;
Count_500ms = 0;
memset(Minute_Bit,0,sizeof(Minute_Bit));
Move_Bit = 0;
}
void Led_Mode()
{
static volatile u8 i = 0;
static volatile u8 n = 0;
switch(Status)
{
case 0://關機模式
Off_Clr();
n = i = 0;
break;
case 1:
/*
計時模式
點亮1個led燈，轉一圈為1分鐘，每1分鐘增加一個固定亮的led燈，
當秒led燈經過固定亮的led燈時，當前led燈熄滅，
若無經過固定亮的led燈，led燈點亮
*/
n = i = 0;
if(Count_500ms >= 16000)
{//62.5us*16000=1秒
Count_500ms = 0;
if(d_n > 9)
{
d_n = 0;
Led_Bit[d_m] = 0;
d_m++;
if(d_m >= 6)
{
d_m = 0;
if(Minute)
{
Move_Bit++;
if(Move_Bit > 9)
{Move_Bit = 0;}
}
Minute++;
if(Minute >= 60)
{
Minute = 0;Move_Bit = 0;
memset(Minute_Bit,0,sizeof(Minute_Bit));
memset(Led_Bit,0,sizeof(Led_Bit));
}
}
}
Led_Bit[d_m] = (u16)(0x200 >> d_n);
Minute_Bit[(Minute-1)/10] |= (u16)(0x200 >> Move_Bit);
if(Minute) {Led_Bit[0] |= Minute_Bit[0];}
if(Minute > 10) {Led_Bit[1] |= Minute_Bit[1];}
if(Minute > 20) {Led_Bit[2] |= Minute_Bit[2];}
if(Minute > 30) {Led_Bit[3] |= Minute_Bit[3];}
if(Minute > 40) {Led_Bit[4] |= Minute_Bit[4];}
if(Minute > 50) {Led_Bit[5] |= Minute_Bit[5];}
if( (Led_Bit[d_m] == Minute_Bit[d_m]) && \
!((d_m == 0) && (d_n == 0)) && \
!((d_m == (Minute-1)/10) && (d_n == Move_Bit))\
)
{Led_Bit[d_m] &= (u16)(~(0x200 >> d_n));}
d_n++;
}
break;
case 2://流水燈
if(Count_500ms >= 267)
{//62.5us*267=16.687毫秒 16.687*60盞led燈，約等于1秒轉1圈
Count_500ms = 0;
if(!Change_Flag)
{
if(d_n > 9)
{
d_n = 0;
d_m++;
if(d_m >= 6)
{d_m = 0;Change_Flag^=1;}//切換全亮流水或全滅流水燈
}
Led_Bit[d_m] |= (u16)(0x200 >> d_n);d_n++;
}
else
{
if(d_n > 9)
{
d_n = 0;
d_m++;
if(d_m >= 6)
{d_m = 0;Change_Flag^=1;}//切換全亮流水或全滅流水燈
}
Led_Bit[d_m] &= (u16)~(0x200 >> d_n);d_n++;
}
}
break;
}
}