// EDISON SCIENCE CORNER //
// EDISON SCIENCE CORNER //
// EDISON SCIENCE CORNER //
// EDISON SCIENCE CORNER //


const int s0 = 8;  
const int s1 = 9;  
const int s2 = 12;  
const int s3 = 11;  
const int out = 10;   
// LED pins connected to Arduino
int redLed = 5;  
int greenLed = 6;  
int blueLed = 7;
// Variables  
int red = 0;  
int green = 0;  
int blue = 0;  
    
void setup()   
{  
  Serial.begin(9600); 
  pinMode(s0, OUTPUT);  
  pinMode(s1, OUTPUT);  
  pinMode(s2, OUTPUT);  
  pinMode(s3, OUTPUT);  
  digitalWrite(s0, LOW);
  digitalWrite(s1, LOW);
  digitalWrite(s2, LOW);
  digitalWrite(s3, LOW);
  pinMode(out, INPUT);  
  pinMode(redLed, OUTPUT);  
  pinMode(greenLed, OUTPUT);  
  pinMode(blueLed, OUTPUT); 
  digitalWrite(redLed, LOW); 
  digitalWrite(greenLed, LOW); 
  digitalWrite(blueLed, LOW); 
  digitalWrite(s0, HIGH);  
  digitalWrite(s1, HIGH);  
}  
    
void loop() 
{  
  color(); 
  Serial.print("Red:");  
  Serial.print(red, DEC);  
  Serial.print(" Greeen: ");  
  Serial.print(green, DEC);  
  Serial.print(" Blue : ");  
  Serial.print(blue, DEC);  
  Serial.println();  

  if ((red < blue&&green)&&(red<30) )
  {  
   Serial.println(" - (Red Color)");  
   digitalWrite(redLed, HIGH); // Turn RED LED ON 
   digitalWrite(greenLed, LOW);  
   digitalWrite(blueLed, LOW);  
  }  
if ((blue <red&&green)&&(blue<30))   
  {  
   Serial.println(" - (Blue Color)");  
   digitalWrite(redLed, LOW);  
   digitalWrite(greenLed, LOW);  
   digitalWrite(blueLed, HIGH); // Turn BLUE LED ON  
  }  
  if ((red<10)&&(green&&blue<20))   
  {  
   Serial.println(" - (yelllow Color)");  
   digitalWrite(redLed, HIGH);  
   digitalWrite(greenLed,HIGH);  
   digitalWrite(blueLed,LOW); // Turn YELLOW LED ON  
  }  
if ((green<red&&blue)&&(green<30))  
  {  
   Serial.println(" - (Green Color)");  
   digitalWrite(redLed, LOW);  
   digitalWrite(greenLed, HIGH); // Turn GREEN LED ON 
   digitalWrite(blueLed, LOW);  
  }
   

  if (red&&green&&blue>50){
  Serial.println("no colour");  
  }
  delay(300);   
  digitalWrite(redLed, LOW);  
  digitalWrite(greenLed, LOW);  
  digitalWrite(blueLed, LOW);  
 }  
    
void color()  
{    
  digitalWrite(s2, LOW);  
  digitalWrite(s3, LOW);  
  //count OUT, pRed, RED  
  red = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);  
  digitalWrite(s3, HIGH);  
  //count OUT, pBLUE, BLUE  
  blue = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);  
  digitalWrite(s2, HIGH);  
  //count OUT, pGreen, GREEN  
  green = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);  
}