Arduino与Proteus仿真实例-TM1637驱动4位7段数码管仿真

TM1637驱动4位7段数码管仿真

TM1637 是一种带键盘扫描接口的LED（发光二极管显示器）驱动控制专用电路，内部集成有MCU 数字接口、数据锁存器、LED 高压驱动、键盘扫描等电路。本产品性能优良，质量可靠。主要应用于电磁炉、微波炉及小家电产品的显示屏驱动。

在前面的实例中对TM1637驱动控制器做了详细的介绍，请参考：

ESP32-IDF开发实例-传感器模块编程-TM1637数码管

1、仿真电路原理图

2、仿真代码实现

本次实例使用到如下开源库：

/\*
 \* A library for the 4 digit display
 \*
 \* Copyright (c) 2012 seeed technology inc.
 \* Website : www.seeed.cc
 \* Author : Frankie.Chu
 \* Create Time: 9 April,2012
 \* Change Log :
 \*
 \* The MIT License (MIT)
 \*
 \* Permission is hereby granted, free of charge, to any person obtaining a copy
 \* of this software and associated documentation files (the "Software"), to deal
 \* in the Software without restriction, including without limitation the rights
 \* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 \* copies of the Software, and to permit persons to whom the Software is
 \* furnished to do so, subject to the following conditions:
 \*
 \* The above copyright notice and this permission notice shall be included in
 \* all copies or substantial portions of the Software.
 \*
 \* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 \* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 \* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 \* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 \* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 \* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 \* THE SOFTWARE.
 \*/
#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 = 0;
unsigned char hour = 12;


#define CLK 4//pins definitions for TM1637 and can be changed to other ports
#define DIO 3
TM1637 tm1637(CLK,DIO);

void setup()
{
  tm1637.set();
  tm1637.init();
  Timer1.initialize(500000);//timing for 500ms
  Timer1.attachInterrupt(TimingISR);//declare the interrupt serve routine:TimingISR
}
void loop()
{
  if(Update == ON)
  {
    TimeUpdate();
    tm1637.display(TimeDisp);
  }

}
void TimingISR()
{
  halfsecond ++;
  Update = ON;
  if(halfsecond == 2){
    second ++;
    if(second == 60)
    {
      minute ++;
      if(minute == 60)
      {
        hour ++;
        if(hour == 24)hour = 0;
        minute = 0;
      }
      second = 0;
    }
    halfsecond = 0;
  }
 // Serial.println(second);
  ClockPoint = (~ClockPoint) & 0x01;
}
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;
}