四位数码管使用实例


/*#include <TimerOne.h>
#include <TM1637.h>
#define ON 1
#define OFF 0
int8_t TimeDisp[] = {0x00, 0x00, 0x00, 0x00};
unsigned char ClockPoint = 1;
unsigned char Update;
unsigned char halfsecond = 0;
unsigned char second;
unsigned char minute = 20;
unsigned char hour = 10;
int buttonpin2=2;//按键的一只脚接端口2,另一只脚接地
int buttonpin7=3;//按键的一只脚接端口7,另一只脚接地

#define CLK 10
#define DIO 11          //DIO接一个4.7k的下拉电阻,这点很重要,否则数码管会假死。
TM1637 tm1637(CLK, DIO);

void setup()
{
  pinMode(buttonpin2,INPUT_PULLUP);//输入上拉模式
  pinMode(buttonpin7,INPUT_PULLUP);//输入上拉模式
  tm1637.set();
  tm1637.init();
  Timer1.initialize(500000);//timing for 500ms
  Timer1.attachInterrupt(TimingISR);//declare the interrupt serve routine:TimingISR
}

void loop()
{
  if(digitalRead(buttonpin2)==0)//按键被按下,调整小时
  {
    delay(200);//延时去抖动
    if(digitalRead(buttonpin2)==0)
    {
      hour=hour+1;
      if (hour == 24) {hour = 0;}
    }
  }
  if(digitalRead(buttonpin7)==0)//按键被按下,调整分
  {
    delay(200);//延时去抖动
    if(digitalRead(buttonpin7)==0)
    {
      minute=minute+1;
      if (minute == 60){minute = 0;}
    }
  }
  if (Update == ON)  //每隔0.5秒调用一次
  {
    TimeUpdate();
    tm1637.display(TimeDisp);
  }
}

void TimingISR()
{
  halfsecond ++;  Update = ON;
  if (halfsecond == 2)
  {
    second ++;  halfsecond = 0;
    if (second == 60)
    {
      minute ++;  second = 0;
      if (minute == 60)
      {
        hour ++;  minute = 0;
        if (hour == 24) {hour = 0;}
      }
    }
  }
  ClockPoint = (~ClockPoint) & 0x01;  //ClockPoint先是按位取反再按位与,结果就是0 1 0 1......这样一直下去。我的理解是0.5秒为0,1秒为1,1.5秒为0,2秒为1。。。。。。
}

void TimeUpdate(void)
{
  if (ClockPoint)  tm1637.point(POINT_ON);
  else  tm1637.point(POINT_OFF);
  TimeDisp[0] = hour / 10;
  TimeDisp[1] = hour % 10;
  TimeDisp[2] = minute / 10;
  TimeDisp[3] = minute % 10;
  Update = OFF;
}*/


#include "TM1637Display.h"
#define CLK 10 // 假设你的 CLK 引脚连接到 10 号引脚
#define DIO 11 // 假设你的 DIO 引脚连接到 11 号引脚
TM1637Display display(CLK, DIO);
void setup() {
display.setBrightness(0x0f); // 设置亮度(范围从 0 到 0x0f)
}
void loop() {
for (int i = 0; i < 10; i++) {
display.setNumber(i, false); // 设置数字 i(范围从 0 到 9)
delay(1000); // 等待⼀秒
}
}