【开源】纯手工低成本打造拟辉光管时钟，也可以很酷炫- 大数跨境

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【开源】纯手工低成本打造拟辉光管时钟，也可以很酷炫

芯片之家

2023-02-26

导读：用最低价的成本，打造辉光管效果。

不想错过我的推送，记得右上角-查看公众号-设为星标，摘下星星送给我

《命运石之门》里 “世界线变动率探测仪”，各种辉光管的作品，让热爱DIY的小伙伴欢喜，但是辉光管的价格又望而却步，并且现在已经很难买到了。怎么能难倒我们的工程师呢？拟辉光管时钟制作指南来了，先看一张效果图：

制作过程如下视频（英文原声，大家自行理解）：

在分享制作过程之前，我们先来了解下LIXIE显示原理。

LIXIE的一端包含有LED，也可以是WS2812B智能LED，能根据需要改变显示颜色的。LED发出的光线被聚集到一叠树脂玻璃Plexiglas中。这类“端面照光”显示器利用全内反射的现象，可将光保持在树脂玻璃内刻蚀出图案的区域。每片代表一个数字，并且通常一次只照亮一张树脂玻璃片，从而显示出具体的数字。

在今天分享的时钟项目中，时钟和分钟的显示需要四位数，每位数需要雕刻出0-9这些数字，然后再添加两个圆点来区分小时和分钟，所以总共需要82个LED。这里指示数字使用蓝色LED灯，区分时分圆点的用白色LED灯。

除了82个LED之外，还需要以下器件：

ATmega328P，即Uno MCU
MCP23017 集成电路
两个 22pF 电容器
330 欧姆电阻
RTC 模块组件，DS3231
16 MHz 石英振荡器
蓝牙模块HC-05
EEPROM，CAT24C02WI-G
蜂鸣器
一些端子连接

所有这些 LED 与 Arduino 的接线，将相同行的阳极焊接在一起以获得 10 行和相同列的阴极。

之后，使用 Arduino 代码控制所需的数字就会非常容易。如果想了解如何控制相同矩阵的 LED ，大家可以去搜下光立方的控制方法。

制作的第一步：CAD 和硬件零件。

从激光雕刻和切割零件开始，使用 solidworks 软件制作了上述设计，可以从文末的下载链接获取 DXF 文件，此设计 100% 推荐用于帮助大家制作设备。

制作的第二步：电路图绘制。

整个控制电路图如下：

使用RTC模块组件进行校准时间和日期配置等，并且通过I2C与MCU建立通信以进行数据传输。在时钟里添加闹钟功能，可以通过蜂鸣器进行提示。为了与时钟接口，使用蓝牙模块，调用Android 应用程序，实时调整时间和日期。

制作的第三步：PCB焊接。

制作电路图后，将其转换为定制的PCB设计，并投板生产。

这就是仿辉光管LIXIE时钟所有的组件了：

一切准备就绪，下面就开始将电子元件焊接到 PCB 上，为此需要烙铁和焊芯线以及用于 SMD 元件的SMD rework（如果使用 RTC 模块，则不需要）。

下图是已经将每个组件焊接到其位置，可以使用PCB的两面来焊接电子元件。

接下来就是进入硬件焊接的第二部分，LED连接，大工程。

正如上面的照片中看到的，在设计中为每个 LED 创建了一个孔，因此只需使用一些胶水固定 LED，然后将相同行的所有阳极和相同列的阴极焊接在一起。完成之后，将有 14 根用于矩阵的电线，因此只需拧紧它们。

然后，将放置Plexiglas零件并拧紧连接点来继续组装。

制作的第四步：软件部分。

现在需要的只有软件代码，这个Arduino代码可以从文末的链接免费获得。代码做了注释，大家可以根据自己的需要进行调整。

/************************************************************************************************************************************************************************                                               * - Author               : BELKHIR Mohamed                        *                                                * - Profession           : (Electrical Ingineer) MEGA DAS owner   *                                                                                               * - Main purpose         : Industrial Application                 *                                                                                  * - Copyright (c) holder : All rights reserved                    * * - License              : BSD 2-Clause License                   *  * - Date                 : 08/15/2019                             * * ***********************************************************************************************************************************************************************/  /*********************************** NOTE **************************************/// Redistribution and use in source and binary forms, with or without// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright notice, this//  list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,//  this list of conditions and the following disclaimer in the documentation//  and/or other materials provided with the distribution.
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED/*                                MMMMMMMXlxMMWXOkOkkOOOKWMMMMMMMMMMMMMMWKOkkOkkkOXMN0OkOkkOk0NMMMMMMN0000OkkOKNMXOOOOOkOk0WMWKOOOOOkkOO0000000OOOOO0NMMMOc                                  MMMMMMMXlxMMWK;      ,0WMMMMMMMMMMMMMMWk'      :XMNO,      :XMMMMMMN000c .,okKWMXc      .xWMNk'      cO0000000kc.  .kMMMOc                                  MMMMMMMXldMMMN:      cWMMMMMMMMMMMMMMMMK,      dMMMWx.     'OMMMMMMMMMO :oNMMMMMMo      ;KMMM0'     .xMMMMMMMMMWd. .kMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMNl      :XMMMMMMMX dkWMMMMMMMo      ;KMMM0'     .dMMMMMMMMMMNc .kMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMK,      oWMMMMMW kkWMMMMMMMMo      ,KMWM0'     .xMMMMMMMMMMMx..kMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMk.     .OMMMMM 0xXMMMMMMMMMo      ,KMMM0'     .xMMMMMMMMMMM0'.kMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMNl      ;XMMM XxOMMMMMMMMMMo      ,KMWM0'     .xMMMMMMMMMMMN:.kMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMK;      oWM WkkNMMMMMMMMMMo      ,KMWM0'     .xMMMMMMMMMMMWd.xMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMk.     .k MKxKMMMMMMMMMMMo      ,KMWM0'     .xMMMMMMMMMMMMNOXMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMWl      ;0kOWMMMMMMMMMMMo      ,KMWM0'     .xMMMMMMMMMMMMMMMMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMK;      ,xNMMMMMMMMMMMMo      ,KMWM0'     .xMMMMMMNXWMMMMMMMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMMO.     .xMMMMMMMMMMMMMo      ,KMWM0'     .xMMMMMK::KMMMMMMMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMMWo      ;XMMMMMMMMMMMMo      ,KMWM0'     .xMMMMXc ,KMMMMMMMMMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMMMX;      oWMMMMMMMMMMMo      ,KMWM0'      ckkxo'  ,KMMMMMMMWMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMMMM .     .kMMMMMMMMMMMo      ,KMWM0'      oKKKOo. ,KMMWWWWWWMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMMM Wo      ;KMMMMMMMMMMo      ,KMWM0'     .xMWWWWx.,KMWWWWWWWMOc                                  MMMMMMMXlxMMMN:      cNMMMMMMMMMMMMMMMMK,      dMMMMMMMMMM MMk.      oWMMMMMMMMMo      ,KMWM0'     .xMWWWWNkxXMWWWWWWWMOc                                  MMMMMMMXlxMWMN:      :NMMMMMMMMMMMMMMMMK,      dMMMMMMMMM MMXxo.     .kMMMMMMMMMo      ,KMWM0'     .xMWWWWWWWWWWWWWWWWWOc                                  MMMMMMMXlxMWMN:      :NMMMMMMMMMMMMMWWMK,      dMMMMMMMM MMWkkWo      ;KMMMMMMMMo      ,KMWM0'     .xMWWWWWWWWWWWWWWWWWOc                                  MMMMMMMXlxMWMN:      :NMMMMMMMMMMMMXoxWK,      dMMMMMMM MMMOxXMX;      lNMMMMMMWo      ,KMWM0'     .xWWWWWWWWWWWWW0lOWWOc                                  MMMMMMMXlxMWMN:      :NMWMMMMMMMMMMx.cWK,      dMMMMMM MMMXx0MMMO.     .kWMMMMMWo      ,KWWW0'     .dWWWWWWWWWWWWNc.kWWOc                                  MMMMMMMXlxMWMN:      :NMWWWMWWWWMMWl cWK,      dMMMMM MMMWkkWMMMWo      ,KMMMMMWo      ,KWWW0'     .dWWWWWWWWWWWWK,.kWWO:                                  MMMMMMMXlxMWMN:      :NMWWWWWWWWWMX; lWK,      dMMMM MMMM0xXMMMMMX:      lNMMMWWo      ,KWWW0'     .dWWWWWWWWWWWWO..kWWO:                                  MMMMMMMXlxWWWN:      :NMWWWWWWWWWMO. lWK,      dMMM MWWMXxOMMMMMMMO.     .xWMMWWo      ,KWWW0'     .dWWWWWWWWWWWWo .kWWO:                                  MMMMMMMXlxWWWN:      :NWWWWWWWWWWNc  lW0'      dMW MWWMWdlXWWMMMWWWd      ,KMWWWo      ,KWWW0'     .dWWWWWWWWWWW0, .kWWO:                                  MMMMMMMXlxWWWN:      :NWWWWWWWWWXl.  cW0,      oW WWMWM0''OWWWWMWWMX:      cXWWWl      ,0WNWO'      dWWWWWWWWWNO;  .kWWO:                                  MMMMMMMXlxWWW0l,,,,,,lOOOOOOOOOko;,,;xNOc,,,,,;lKWN0OOOd;;lkXWWWWWWNx;;;;,,:xXWKo;,,,,,:kNWNk:,,,,,;lkOOOOOOOOxc;,,c0WWO:*/
#if defined(ESP8266)#include <pgmspace.h>#else#include <avr/pgmspace.h>#endif#include <Wire.h>                                    // must be incuded here so that Arduino library object file references work#include <RtcDS3231.h>                               // Include the RTC library#include <EEPROM.h>                                  // Include the EEPROM library needed for alarm handeling#include "Adafruit_MCP23017.h"                       // Include the MCP library to interface the MCP iC
RtcDS3231 Rtc;                                       // Create the RTC instanceRtcDateTime dateTimeData;Adafruit_MCP23017 MyMCP;                             // Create the MCP instance
char SerialData;                                     // Use this variable to read each caractere received through serial portchar SerialDataDecisison;String dateData="";                                     // Store all serial caracters in this variableString timeData="";                                     // Store all serial caracters in this variableString alarmData="";                                     // Store all serial caracters in this variableint monthNumber=13;long int dotBlinkTime=millis();int alarmHours=0;int alarmMinutes=0;int alarmSeconds=0;int alarmActivate=0;int alarmCounterControl=0;int alarmCounter=0;int displayDot=1;long int buzzerTime=millis();long int buzzerTimeControl=millis();long int dispalDate=millis();
const int N0=1;                                   // The first line of plexiglass LEDs 0const int N1=0;                                   // The second line of plexiglass LEDs 1const int N2=15;                                  // The third line of plexiglass LEDs 2const int N3=14;                                  // .const int N4=13;                                  // .const int N5=12;                                  // .const int N6=11;                                  // .const int N7=9;                                   // .const int N8=10;                                  // .const int N9=8;                                   // The last line of plexiglass LEDs 9const int dig1=2;                                 // Control of the first digitconst int dig2=3;                                 // .const int dig3=4;                                 // .const int dig4=5;                                 // Control of the fourth digitconst int dot=6;                                  // Control of the two dotsconst int buzzer=3;                               // Control of the buzzer
const int delaySeq=5000;
void setup() {  Serial.begin(9600);  Serial.setTimeout(100);  Wire.setClock(3400000);  pinMode(buzzer,OUTPUT);  digitalWrite(buzzer,LOW);  MyMCP.begin(1);  //--------RTC SETUP ------------  Rtc.Begin();  for(int i=0;i<16;i++)  {    MyMCP.pinMode(i,OUTPUT);    MyMCP.digitalWrite(i,LOW);  }  clearDisplay();
  if (!Rtc.IsDateTimeValid())   {        // Common Cuases:        //    1) first time you ran and the device wasn't running yet        //    2) the battery on the device is low or even missing
      Serial.println("RTC lost confidence in the DateTime!");
        // following line sets the RTC to the date & time this sketch was compiled        // it will also reset the valid flag internally unless the Rtc device is        // having an issue  }  if (!Rtc.GetIsRunning())  {      Serial.println("RTC was not actively running, starting now");      Rtc.SetIsRunning(true);  }  Rtc.Enable32kHzPin(false);  Rtc.SetSquareWavePin(DS3231SquareWavePin_ModeNone);   dateTimeData=Rtc.GetDateTime();  if(EEPROM.read(0)==1)  {    alarmMinutes=EEPROM.read(1);    alarmHours=EEPROM.read(2);    alarmActivate=1;  }}
void loop() {  while(Serial.available())                   // While serial data are available we store it   {    delay(10);    SerialDataDecisison=Serial.read();    if(SerialDataDecisison=='d')    {      monthNumber=Serial.parseInt();      switch (monthNumber)      {        case 1 : dateData+="Jan"; break;        case 2 : dateData+="Feb"; break;        case 3 : dateData+="Mar"; break;        case 4 : dateData+="Apr"; break;        case 5 : dateData+="May"; break;        case 6 : dateData+="Jun"; break;        case 7 : dateData+="Jul"; break;        case 8 : dateData+="Aug"; break;        case 9 : dateData+="Sep"; break;        case 10 : dateData+="Oct"; break;        case 11 : dateData+="Nov"; break;        case 12 : dateData+="Dec"; break;      }      while(Serial.available())                   // While serial data are available we store it       {        delay(10);        SerialData=Serial.read();        dateData+=SerialData;      }      const char* newDate=dateData.c_str();      dateTimeData=Rtc.GetDateTime();      String TimeFromRTC=(String(dateTimeData.Hour())+":"+String(dateTimeData.Minute())+":"+String(dateTimeData.Second()));      const char* sameTime=TimeFromRTC.c_str();      Serial.println(sameTime);      RtcDateTime RtcConfig = RtcDateTime(newDate, sameTime);      Rtc.SetDateTime(RtcConfig);    }    if(SerialDataDecisison=='t')    {      while(Serial.available())                   // While serial data are available we store it       {        delay(10);        SerialData=Serial.read();        timeData+=SerialData;      }                  const char* newTime=timeData.c_str();      dateTimeData=Rtc.GetDateTime();      String DateFromRTC=(String(dateTimeData.Month())+" "+String(dateTimeData.Day())+" "+String(dateTimeData.Year()));      const char* sameDate=DateFromRTC.c_str();      Serial.println(sameDate);      RtcDateTime RtcConfig = RtcDateTime(sameDate, newTime);      Rtc.SetDateTime(RtcConfig);    }    if(SerialDataDecisison=='a')    {      while(Serial.available())                   // While serial data are available we store it       {        delay(10);        SerialData=Serial.read();        alarmData+=SerialData;      }      alarmHours=getValue(alarmData, ':', 0).toInt();      alarmMinutes=getValue(alarmData, ':', 1).toInt();      alarmSeconds=getValue(alarmData, ':', 2).toInt();      EEPROM.write(0,1);      EEPROM.write(1,alarmMinutes);      EEPROM.write(2,alarmHours);      alarmActivate=1;      buzzerTime=millis();    }  }  dateData="";  timeData="";  alarmData="";  if(millis()-dotBlinkTime<1000&&displayDot==1)  {    MyMCP.digitalWrite(dot,HIGH);  }  if(millis()-dotBlinkTime>1000&&displayDot==1)  {    MyMCP.digitalWrite(dot,LOW);    if(millis()-dotBlinkTime>2000&&displayDot==1)    {      dotBlinkTime=millis();    }  }  RtcDateTime now = Rtc.GetDateTime();  if(millis()-dispalDate<10000)    {      displayMode(now.Minute(),"right");      displayMode(now.Hour(),"left");      displayDot=1;    }    if(millis()-dispalDate>10000)    {      displayDot=0;      MyMCP.digitalWrite(dot,LOW);      displayMode(now.Day(),"right");      displayMode(now.Month(),"left");      if(millis()-dispalDate>15000)      {        dispalDate=millis();        displayDot=1;      }    }  if(alarmActivate==1&&now.Hour()==alarmHours&&now.Minute()==alarmMinutes)  {    if(alarmCounterControl<8)    {      alarmControl();    }    else    {      alarmCounterControl=0;      alarmActivate=0;      EEPROM.write(0,0);    }  }}void alarmControl(){  if(millis()-buzzerTime<65)    {      digitalWrite(buzzer,HIGH);    }    if(millis()-buzzerTime>65)    {      digitalWrite(buzzer,LOW);      if(millis()-buzzerTime>130&&alarmCounter<4)      {        buzzerTime=millis();        alarmCounter+=1;      }      if(millis()-buzzerTime>1000)      {        alarmCounter=0;        alarmCounterControl+=1;      }    }  }void clearDisplay(){  MyMCP.digitalWrite(dig1,HIGH);  MyMCP.digitalWrite(dig2,HIGH);  MyMCP.digitalWrite(dig3,HIGH);  MyMCP.digitalWrite(dig4,HIGH);  delay(0);}void displayMode(int value, String side){  if(side=="right")  {    switch (value%10)    {      case 0 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N0,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N0,LOW);      }break;      case 1 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N1,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N1,LOW);      }break;      case 2 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N2,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N2,LOW);      }break;      case 3 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N3,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N3,LOW);      }break;      case 4 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N4,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N4,LOW);      }break;      case 5 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N5,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N5,LOW);      }break;      case 6 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N6,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N6,LOW);      }break;      case 7 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N7,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N7,LOW);      }break;      case 8 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N8,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N8,LOW);      }break;      case 9 :       {        MyMCP.digitalWrite(dig1,LOW);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N9,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N9,LOW);      }break;    }    switch (value/10)    {      case 0 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N0,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N0,LOW);      }break;      case 1 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N1,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N1,LOW);      }break;      case 2 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N2,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N2,LOW);      }break;      case 3 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N3,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N3,LOW);      }break;      case 4 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N4,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N4,LOW);      }break;      case 5 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N5,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N5,LOW);      }break;      case 6 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N6,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N6,LOW);      }break;      case 7 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N7,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N7,LOW);      }break;      case 8 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N8,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N8,LOW);      }break;      case 9 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,LOW);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N9,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N9,LOW);      }break;    }  }  if(side=="left")  {    switch (value%10)    {      case 0 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N0,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N0,LOW);      }break;      case 1 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N1,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N1,LOW);      }break;      case 2 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N2,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N2,LOW);      }break;      case 3 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N3,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N3,LOW);      }break;      case 4 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N4,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N4,LOW);      }break;      case 5 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N5,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N5,LOW);      }break;      case 6 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N6,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N6,LOW);      }break;      case 7 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N7,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N7,LOW);      }break;      case 8 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N8,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N8,LOW);      }break;      case 9 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,LOW);        MyMCP.digitalWrite(dig4,HIGH);        MyMCP.digitalWrite(N9,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N9,LOW);      }break;    }    switch (value/10)    {      case 0 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N0,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N0,LOW);      }break;      case 1 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N1,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N1,LOW);      }break;      case 2 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N2,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N2,LOW);      }break;      case 3 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N3,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N3,LOW);      }break;      case 4 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N4,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N4,LOW);      }break;      case 5 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N5,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N5,LOW);      }break;      case 6 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N6,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N6,LOW);      }break;      case 7 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N7,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N7,LOW);      }break;      case 8 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N8,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(N8,LOW);      }break;      case 9 :       {        MyMCP.digitalWrite(dig1,HIGH);        MyMCP.digitalWrite(dig2,HIGH);        MyMCP.digitalWrite(dig3,HIGH);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N9,HIGH);        delayMicroseconds(delaySeq);        MyMCP.digitalWrite(dig4,LOW);        MyMCP.digitalWrite(N9,LOW);      }break;    }  }}String getValue(String data, char separator, int index){    int found = 0;    int strIndex[] = { 0, -1 };    int maxIndex = data.length() - 1;
    for (int i = 0; i <= maxIndex && found <= index; i++)     {        if (data.charAt(i) == separator || i == maxIndex)         {            found++;            strIndex[0] = strIndex[1] + 1;            strIndex[1] = (i == maxIndex) ? i+1 : i;        }    }    return found > index ? data.substring(strIndex[0], strIndex[1]) : "";}