//sensercode for any 5v arduino 

long oldmillis = 0;
long w = 0;
int y = 0;
int a = 0;
int b = 0;
int bb = 0;
int c = 0;
int cc = 0;
int e = 0;
int f = 0;
int g = 0;
int h = 0;
int j = 10; //make this smaller to speed up or bigger to slow down  
int pot;
boolean state1a = true;
boolean state2a = true;
boolean state1b = true;
boolean state2b = true;
boolean state1c = true;
boolean state2c = true;
byte bits;

void setup()
{
 pinMode(10,OUTPUT);
 digitalWrite(10, LOW);
 pinMode(8,OUTPUT);
 pinMode(9,OUTPUT);
 Serial.begin(9600);
}

void loop()
{



  
   w = millis() - oldmillis;
   if(y == 2 && w > j*3)
  {
   if(f == 1 && cc == c) 
   {
    f = 2; // # disable this for accuracy before update at start  
   }     
if(f == 1  ) 
   {     
  bits = serial(c);            
   }  
  if(f == 2 && bb == b)
   {
    f = 3;// # disable this for accuracy before update at start  
   }
if(f == 2 )    
   {
   bits = serial(b);
   } 
if(f == 3 ) 
   {  
  bits = serial(a);
    f = 0;
   cc = c;
   bb = b;
   g++;//counter increment, disable this when using analog input 
  //  pot = analogRead(A0);// enable this when using a potentiometer or a sensor
  //  g = map(pot,0,1023,0,999);// idem   
      e = g/10;
     h  = g/100;
     a = g - (e*10);     // a is for the units
     b = e - (h*10) + 10;//b is for the tens
     c = h + 20;         // c = for the hunderds  
    if( g > 999)
  {
    g = 0;
  }
   } 
   digitalWrite(10,LOW);
   digitalWrite(9,state1a);
   digitalWrite(8,state2a);
f++;
 y = 0;
 w = 0;
 oldmillis = millis();  
  }  
  if(y == 0 && w > j)    
  { 
  digitalWrite(10,HIGH); 
  digitalWrite(9,state1b);
  digitalWrite(8,state2b); 
 y = 1;
  }
   if(y == 1 && w > j*2) 
  {  
 digitalWrite(9,state1c);
  digitalWrite(8,state2c);  
 y = 2;
  }
}

byte serial(int getalnr)
{ 
switch (getalnr)
{
    case 0:////////////  units
 state1a = 0; 
 state2a = 0;//0
 state1b = 0; 
 state2b = 0;//0 
 state1c = 0;
 state2c = 1;//2 
 break;
  case 1://
 state1a = 1; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 0;//0
 state1c = 0;
 state2c = 1;//2 

 break;
case 2:
 state1a = 0; 
 state2a = 0;//0
 state1b = 1; 
 state2b = 0;//1 
 state1c = 0;
 state2c = 1;//2

 break;
 case 3:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 0;//1 
 state1c = 0;
 state2c = 1;//2 

 break;
  case 4: 
 state1a = 0; 
 state2a = 0;//0
 state1b = 0; 
 state2b = 1;//2 
 state1c = 0;
 state2c = 0;//0

 break;
  case 5:
 state1a = 1; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 1;//2
 state1c = 0;
 state2c = 0;//0

 break;
  case 6:
 state1a = 0; 
 state2a = 1;//2
 state1b = 0; 
 state2b = 1;//2
 state1c = 0;
 state2c = 0;//0 

 break;
  case 7:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 1;//3
 state1c = 0;
 state2c = 0;//0

 break;

  case 8:
 state1a = 0; 
 state2a = 1;//2
 state1b = 1; 
 state2b = 1;//3
 state1c = 0;
 state2c = 0;//0

 break;
  case 9:
 state1a = 1; 
 state2a = 1;//3
 state1b = 1; 
 state2b = 1;//3 
 state1c = 0;
 state2c = 0;//0

 break;
 
    case 10:////////////tens 
 state1a = 0; 
 state2a = 0;//0
 state1b = 0; 
 state2b = 0;//0
 state1c = 1;
 state2c = 1;//3

 break;
  case 11://
 state1a = 1; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 0;//0 
 state1c = 1;
 state2c = 1;//3

 break;
case 12:
 state1a = 0; 
 state2a = 0;//0
 state1b = 1; 
 state2b = 0;//1
 state1c = 1;
 state2c = 1;//3 

 break;
 case 13:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 0;//1 
 state1c = 1;
 state2c = 1;//3 

 break;
  case 14: 
 state1a = 0; //
 state2a = 0;//0
 state1b = 0; 
 state2b = 1;//2 
 state1c = 1;
 state2c = 0;//1 

 break;
  case 15:
 state1a = 1; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 1;//2 
 state1c = 1;
 state2c = 0;//1

 break;
  case 16:
 state1a = 0; 
 state2a = 1;//2
 state1b = 0; 
 state2b = 1;//2 
 state1c = 1;
 state2c = 0;//1 
 
 break;
  case 17:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 1;//3
 state1c = 1;
 state2c = 0;//1

 break;

  case 18:
 state1a = 0; 
 state2a = 1;//2
 state1b = 1; 
 state2b = 1;//3 
 state1c = 1;
 state2c = 0;//1 

 break;
  case 19:
 state1a = 1; 
 state2a = 1;//3
 state1b = 1; 
 state2b = 1;//3
 state1c = 1;
 state2c = 0;//1 

 break;

     case 20://////// hunderds
 state1a = 0; 
 state2a = 0;//0
 state1b = 0; 
 state2b = 0;//0 
 state1c = 1;
 state2c = 0;//1 
 break;
  case 21://
 state1a = 21; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 0;//0
 state1c = 1;
 state2c = 0;//1 

 break;
case 22:
 state1a = 0; 
 state2a = 0;//0
 state1b = 1; 
 state2b = 0;//1 
 state1c = 0;
 state2c = 0;//0

 break;
 case 23:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 0;//1 
 state1c = 0;
 state2c = 0;//0 

 break;
  case 24:
 state1a = 0; 
 state2a = 0;//0
 state1b = 0; 
 state2b = 1;//2 
 state1c = 1;
 state2c = 1;//3

 break;
  case 25:
 state1a = 1; 
 state2a = 0;//1
 state1b = 0; 
 state2b = 1;//2
 state1c = 1;
 state2c = 1;//3

 break;
  case 26:
 state1a = 0; 
 state2a = 1;//2
 state1b = 0; 
 state2b = 1;//2
 state1c = 1;
 state2c = 1;//3 

 break;
  case 27:
 state1a = 1; 
 state2a = 0;//1
 state1b = 1; 
 state2b = 1;//3
 state1c = 0;
 state2c = 1;//2

 break;
  case 28:
 state1a = 0; 
 state2a = 1;//2
 state1b = 1; 
 state2b = 1;//3
 state1c = 0;
 state2c = 1;//2

 break;
  case 29:
 state1a = 1; 
 state2a = 1;//3
 state1b = 1; 
 state2b = 1;//3 
 state1c = 0;
 state2c = 1;//2
 break;
}
}