TSC3200 on Arduino

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###Introduction The detailed information could be seen as in :
http://www.eefocus.com/zhang700309/blog/13-08/296390_6c438.html
###Wiring: Notice we use the interrupt 1.
###Code

#include <TimerOne.h>
 
#define S0     6   // Please notice the Pin's define
#define S1     5
#define S2     4
#define S3     2
#define OUT    3
 
int   g_count = 0;    // count the frequecy
int   g_array[3];     // store the RGB value
int   g_flag = 0;     // filter of RGB queue
float g_SF[3];        // save the RGB Scale factor
 
 
// Init TSC230 and setting Frequency.
void TSC_Init()
{
  pinMode(S0, OUTPUT);
  pinMode(S1, OUTPUT);
  pinMode(S2, OUTPUT);
  pinMode(S3, OUTPUT);
  pinMode(OUT, INPUT);
 
  digitalWrite(S0, LOW);  // OUTPUT FREQUENCY SCALING 2%
  digitalWrite(S1, HIGH); 
}
 
// Select the filter color 
void TSC_FilterColor(int Level01, int Level02)
{
  if(Level01 != 0)
    Level01 = HIGH;
 
  if(Level02 != 0)
    Level02 = HIGH;
 
  digitalWrite(S2, Level01); 
  digitalWrite(S3, Level02); 
}
 
void TSC_Count()
{
  g_count ++ ;
}
 
void TSC_Callback()
{
  switch(g_flag)
  {
    case 0: 
         Serial.println("->WB Start");
         TSC_WB(LOW, LOW);              //Filter without Red
         break;
    case 1:
         Serial.print("->Frequency R=");
         Serial.println(g_count);
         g_array[0] = g_count;
         TSC_WB(HIGH, HIGH);            //Filter without Green
         break;
    case 2:
         Serial.print("->Frequency G=");
         Serial.println(g_count);
         g_array[1] = g_count;
         TSC_WB(LOW, HIGH);             //Filter without Blue
         break;
 
    case 3:
         Serial.print("->Frequency B=");
         Serial.println(g_count);
         Serial.println("->WB End");
         g_array[2] = g_count;
         TSC_WB(HIGH, LOW);             //Clear(no filter)   
         break;
   default:
         g_count = 0;
         break;
  }
}
 
void TSC_WB(int Level0, int Level1)      //White Balance
{
  g_count = 0;
  g_flag ++;
  TSC_FilterColor(Level0, Level1);
  Timer1.setPeriod(1000000);             // set 1s period
}
 
void setup()
{
  TSC_Init();
  Serial.begin(9600);
  Timer1.initialize();             // defaulte is 1s
  Timer1.attachInterrupt(TSC_Callback);  
  attachInterrupt(1, TSC_Count, RISING);  
 pinMode(8, OUTPUT);
 pinMode(9, OUTPUT);
 pinMode(10, OUTPUT);
 digitalWrite(8,HIGH);
 digitalWrite(9,HIGH);
 digitalWrite(10,HIGH);
 
  delay(4000);
 
  for(int i=0; i<3; i++)
    Serial.println(g_array[i]);
 
  g_SF[0] = 255.0/ g_array[0];     //R Scale factor
  g_SF[1] = 255.0/ g_array[1] ;    //G Scale factor
  g_SF[2] = 255.0/ g_array[2] ;    //B Scale factor
 
  Serial.println(g_SF[0]);
  Serial.println(g_SF[1]);
  Serial.println(g_SF[2]);
 
}
 
void loop()
{
   g_flag = 0;
   for(int i=0; i<3; i++)
    Serial.println(int(g_array[i] * g_SF[i]));
   if(((g_array[0]*g_SF[0])>(g_array[1]*g_SF[1])) && ((g_array[0]*g_SF[0])>(g_array[2]*g_SF[2])))
   {
      digitalWrite(8,HIGH);
      digitalWrite(9,LOW);
      digitalWrite(10,LOW);
   }
   else if(((g_array[1]*g_SF[1])>(g_array[0]*g_SF[0])) && ((g_array[1]*g_SF[1])>(g_array[2]*g_SF[2])))
   {
      digitalWrite(8,LOW);
      digitalWrite(9,HIGH);
      digitalWrite(10,LOW);
   }     
   else if(((g_array[2]*g_SF[2])>(g_array[1]*g_SF[1])) && ((g_array[2]*g_SF[2])>(g_array[0]*g_SF[0])))
   {
      digitalWrite(8,LOW);
      digitalWrite(9,LOW);
      digitalWrite(10,HIGH);
   }        
   else
   {
      digitalWrite(8,LOW);
      digitalWrite(9,LOW);
      digitalWrite(10,LOW);
   }
   delay(4000);
 
}

###Effect First, the program will caculate the RBG base value out.
If you put the sensor on a red object, red LED will be lighten, turn the sensor facing a green object, green LED will be lighten; blue object for blue LED.