用ATmega 328 板和TM1638数显板和简单代码制作的小电子钟
小孩参加学校的机器人制作竞赛，剩下了一块Mini 的 ATmega 328 板和TM1638数显板，为了不白白浪费扔垃圾桶，我就拿来自学一下Arduino，好像还有点意思。今天编了一个电子钟小程序，也算是动起来了。找到这里分享一下。因为学校只提供安装教程，没有讲解这些板子是怎么连接编程的，连板子的参数资料都没有提供，所以资料都是自己上网找的，花了点时间。为了简化程序，我在网上找到了TM1638的一个库文件，所以实际代码只需要几行。也没有安装时钟模块，所以钟走的不太准，而且一拔电得重设时间。所以也把按钮做成了可随时调节时钟。
具体代码如下：（程序文件和TM1638库文件见附件）
#include <InvertedTM1638.h>
#include <TM1638.h>
#include <TM1638QYF.h>
#include <TM1640.h>
#include <TM16XX.h>
#include <TM16XXFonts.h>
//TM1638模块引脚定义
int DIO = 9;
int CLK = 12;
int STB = 13; //这里定义了那三个脚
TM1638 disp(DIO,CLK, STB);//data,clk,stb
uint16_tj = 0;
unsigned long TimeNow;
void setup ()
{
TimeNow = Time2second(9174100);//initialization time day|hour|min|sec
}
void loop()
{
unsigned long i;
++TimeNow;
i=disp.getButtons();//time setting
disp.setLEDs(i);
switch (i) {
case 1: //Reduce day
case 4: //Reduce hour
case 16: //Reduce minute
case 64: //Reduce second
TimeNow=second2Time(TimeNow);
i= pow(10,(7-getBaseLog(2,i*2)));
TimeNow=TimeNow + i;
TimeNow = Time2second(TimeNow);
break;
case 2: //Add day
case 8: //Plus hour
case 32: //Plus minute
case 128://Plus second
TimeNow=second2Time(TimeNow);
i= pow(10,(7-getBaseLog(2,i)));
TimeNow=TimeNow - i;
TimeNow = Time2second(TimeNow);
break;
default:
// statements
break;
}
disp.setDisplayToDecNumber(second2Time(TimeNow), 0,false);
delay(1000);
}
unsigned long second2Time(unsigned long DATA) //convert second count to a time showing
{
unsigned long second;
unsigned long minute;
unsigned long hour;
unsigned long day;
unsigned long result;
second = DATA % 60;
DATA = ceil(DATA/60);
minute = DATA % 60;
DATA = ceil(DATA/60);
hour =DATA % 24;
DATA = ceil(DATA/24);
day = DATA % 30;
result = day * 1000000 + hour * 10000 + minute *100 + second;
return result;
}
unsigned long Time2second(unsigned long DATA) //convert a time showing num to second num
{
unsigned long second;
unsigned long minute;
unsigned long hour;
unsigned long day;
unsigned long result;
second = DATA % 100 % 60;
DATA = ceil(DATA/100);
minute = DATA % 100 % 60;
DATA = ceil(DATA/100);
hour =DATA % 100 % 24;
DATA = ceil(DATA/100);
day = DATA % 100 % 30 ;
result = day * 86400 + hour * 3600 + minute * 60 + second;
return result;
}
int getBaseLog(int x, int y) //logx y）：
{
return log(y) / log(x);
}
小朋友能让我们学会很多技能呢 哈哈，很赞啊。继续创下去。{:5_148:}
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