/*This digital tube is commen cathode*/
//set the interface of anode
int a = 26;
int b = 50;
int c = 48;
int d = 46;
int e = 42;
int f = 40;
int g = 38;
int dp = 36;
int ajs=4;
int ajf=1;
int kg = 6;
int cs = 1;
//set the interface of cathode
int d4 = 34;
int d3 = 32;
int d2 = 30;
int d1 = 28;
//set the viriate
long n = 7;
long k = 5;
long l = 3;
long m = 2;
long t = 0;
byte duan_segs[8] = { a, b, c, d, e, f, g, dp};
byte wei_segs[4] = { d1, d2, d3, d4 };
byte seven_seg_digits[10][7] = { { 1,1,1,1,1,1,0 },  // = 0
                                 { 0,1,1,0,0,0,0 },  // = 1
                                 { 1,1,0,1,1,0,1 },  // = 2
                                 { 1,1,1,1,0,0,1 },  // = 3
                                 { 0,1,1,0,0,1,1 },  // = 4
                                 { 1,0,1,1,0,1,1 },  // = 5
                                 { 1,0,1,1,1,1,1 },  // = 6
                                 { 1,1,1,0,0,0,0 },  // = 7
                                 { 1,1,1,1,1,1,1 },  // = 8
                                 { 1,1,1,1,0,1,1 }   // = 9
                             }; 
//the time of last opperating
unsigned long previousMillis = 0; 
//The minimum time interval
int INTERVAL = 1000;
//flag represents three mode£¬0-stop£¬1-timing£¬2-suspend
int flag = 1;
//Simulation of the mouth A0
int BUTTON = 0;
void setup()
{ 
  pinMode( 51 , OUTPUT);
  digitalWrite(51,LOW);
  digitalWrite(49,LOW);
  digitalWrite(47,HIGH);
  digitalWrite( A5 , LOW );
  Serial.begin(9600);
  pinMode( 47 , OUTPUT);
  for(int i=0;i<4;i++)
    pinMode(wei_segs[i], OUTPUT);
  for(int i=0;i<8;i++)
    pinMode(duan_segs[i], OUTPUT); 
}
 
void loop()
{        
    clearLEDs();
    pickDigit(1);
    lightSegments(m%10);
    dkg();
    jianyis();
      
    clearLEDs();
    pickDigit(2);
    lightSegments(l%10); 
    jiayis();
    
    clearLEDs();
    pickDigit(3);
    lightSegments(k%10);
     LED();    
    
    clearLEDs();
    pickDigit(4);
    lightSegments(n%10);
    zs();
    jishi();
    keyScan();
    jiayif();
    jianyif();    
    fmqx();
    fmqt();    
  // fmqx();
   //fmqt();
   //LED();
    //keyScan();
   // jiayis();
   // jianyis();
  //jiayif();
   //jianyif();
   // zs();
  // dkg();

   
  }

 
void pickDigit(int x)  //Define pickDigit(x),the function is to open dx interface 
{
  for(int i=0;i<4;i++)
  {
    if(i == (x-1))
      digitalWrite(wei_segs[i], LOW); 
    else
      digitalWrite(wei_segs[i], HIGH);    
  }
}
 
//set open point

 
//clear screen
void clearLEDs()  
{
  for (int i = 0; i < 8; i++) 
    digitalWrite(duan_segs[i], LOW);
}
 
 
//  light corresponding Numbers of Digital tube
void lightSegments(int x) 
{
  for (int i = 0; i < 7; i++) 
  {
    digitalWrite(duan_segs[i], seven_seg_digits[x][i]);
  }
}
 //keyscan
void keyScan()
{
  if(analogRead(BUTTON)>600)
   {
     delay(20);
     if(analogRead(BUTTON)>600)
     {
       flag++;
       if(flag>=3)
         flag=1;
       while(analogRead(BUTTON)>600);
     }
   }
}
//¹âÃôºì
void LED()
{
Serial.print( analogRead(A2) );
Serial.println("");
Serial.print( analogRead(A3) );
Serial.println("");
if (( ( ( analogRead(A2) ) < ( 400) ) && ( ( 120 ) < ( analogRead(A3) ) ) ))
{
digitalWrite( A5 , HIGH );
}
else
{
digitalWrite( A5 , LOW );
}
}
//   The hour add 1
void jiayis()
{  Serial.print( analogRead(A2) );
  Serial.println("");
  Serial.print( analogRead(A3) );
  Serial.println("");
  if(((analogRead(ajs)>600))&&(flag==1))
  {
         delay(20);
     if(((analogRead(ajs)>600))&&(flag==1))  
     {  t=0;
        l++;
        if(l==10)
        {
        m++;
        l=0;           
          }
         if((m==2)&&(l==4))
          {  n=0;
             k=0;
             l=0;
             m=0;             
        }        
       while(((analogRead(ajs)>600))&&(flag==1));
     }
  }   
}

//   the hour minus 1
void jianyis()
{
  if(((analogRead(ajs)>600))&&(flag==2))
  {
         delay(20);
     if(((analogRead(ajs)>600))&&(flag==2))  
     {  t=0;
        l--;
        if((l==-1)&&((m==1)||(m==2)))
        {
        m--;
        l=9;           
          }
         if((m==0)&&(l==-1))
          {  
             l=3;
             m=2;
             
        }        
       while(((analogRead(ajs)>600))&&(flag==2));
     }
  }   
}

//the minute add 1
void jiayif()
{  
  if(((analogRead(ajf)>600))&&(flag==1))
  {
         delay(20);
     if(((analogRead(ajf)>600))&&(flag==1));  
     {  t=0;
        n++;
          if(n==10)
          {
          k++;
          n=0;
          if(k==6)
          {
          n=0;
          k=0;
          l++;
        if(l==10)
        {
        m++;
        l=0;           
          }
         if((m==2)&&(l==4))
          {  n=0;
             k=0;
             l=0;
             m=0;             
        }
          }
          }        
       while(((analogRead(ajf)>600))&&(flag==1));
     }
  }   
}

//the minute minus 1
void jianyif()
{
  if(((analogRead(ajf)>600))&&(flag==2))
  {
         delay(20);
     if(((analogRead(ajf)>600))&&(flag==2));  
     {  t=0;
        n--;
          if(n==-1)
          {
          k--;
          n=9;
          if((k==-1))
          {
          n=9;
          k=5;
          l--;
        if(l==-1)
        {
        m--;
        l=9;           
          }
         if((m==-1)&&(l==9))
          {  
             l=3;
             m=2;             
        }
          }
          }        
       while(((analogRead(ajf)>600))&&(flag==2));
     }
  }   
}
//the buzzer alram
void fmqx()
{
if((n==0)&&(k==0)&&(l==0)&&(m==0)&&(t==0))
    {
      digitalWrite(47,LOW);
      digitalWrite(51,HIGH);
    }
}
//the buzzer stop
void fmqt()
{
if((n==0)&&(k==0)&&(l==0)&&(m==0)&&(t==20))
    {
      digitalWrite(47,HIGH);
    }
}

void zs()
{ Serial.print( analogRead(A2) );
  Serial.println("");
if((l==8)&&(m==0))
    {
    digitalWrite(51,LOW);  
    }
}
//manual contor the light
void dkg()
{  
   Serial.print( analogRead(A3) );
   Serial.println("");
  if((analogRead(kg)>200)&&(( ( 120 ) < ( analogRead(A3) ) )))
   {
     delay(20);
     if((analogRead(kg)>200)&&( ( 120 ) < ( analogRead(A3) ) ))
     { cs++; 
      digitalWrite(49,HIGH);
      if(cs==3)
      {
       digitalWrite(49,LOW);
        cs=1; 
      }
       while((analogRead(kg)>200)&&( ( 120 ) < ( analogRead(A3) ) ));
     }
   }
}
void jishi()
{
 if((flag == 1)||(flag==2))//timing mode 
    {
      unsigned long currentMillis=millis();//The current operating time
      if(currentMillis - previousMillis >= INTERVAL)
      {   t++;
         if(t==60)
         {
          n++;
          t=0;
          } 
        previousMillis=currentMillis;
         if(n==10)
        {
          k++;
          n=0;
          if(k==6)
          {
          l++;
          k=0;
           if((m==2)&&(l==4))
          {  n=0;
             k=0;
             l=0;
             m=0;                                                                   
          } 
          
          if(l==10)
          {
          m++;
          l=0;
         
          }
          }
        }
         
      }
    }
}