ywrobot color

int out = 2; 

int s0 = 3;  

int s1 = 4;  

int s2 = 5;  

int s3 = 6;    

int RedColor = 0;  

int GreenColor = 0;  

int BlueColor = 0;  

void setup() {  

  Serial.begin(9600); 

  pinMode(s0, OUTPUT);  

  pinMode(s1, OUTPUT);  

  pinMode(s2, OUTPUT);  

  pinMode(s3, OUTPUT);  

  pinMode(out, INPUT);   

  digitalWrite(s0, HIGH);  

  digitalWrite(s1, HIGH);  

}  

void loop() {  

  ScanColor(); 

  Serial.print(" Red: ");  

  Serial.print(RedColor);  

  Serial.print(" Green: ");  

  Serial.print(GreenColor);  

  Serial.print(" Blue : ");  

  Serial.print(BlueColor);   

  if (RedColor < BlueColor && RedColor < GreenColor) {  

   Serial.println(" - (Red Color)");

  }  

  else if (BlueColor < RedColor && BlueColor < GreenColor) {  

   Serial.println(" - (Blue Color)");

  }  

  else if (GreenColor < RedColor && GreenColor < BlueColor) {  

   Serial.println(" - (Green Color)");

  }  

}  

void ScanColor() {    

  digitalWrite(s2, LOW);  

  digitalWrite(s3, LOW);  

  RedColor = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH); 

  digitalWrite(s3, HIGH);  

  BlueColor = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);

  digitalWrite(s2, HIGH);  

  GreenColor = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);    

}