TCS230/TCS3200 color-recognition sensor with Arduino

TCS230-TCS3200-Color-Detection.ino

// TCS230 or TCS3200 pins wiring to Arduino
#define S0 13
#define S1 12
#define S2 11
#define S3 10
#define sensorOut 9

// Stores frequency read by the photodiodes
int R = 0;
int G = 0;
int B = 0;

void setup() {
  // Setting the outputs
  pinMode(S0, OUTPUT);
  pinMode(S1, OUTPUT);
  pinMode(S2, OUTPUT);
  pinMode(S3, OUTPUT);
  
  // Setting the sensorOut as an input
  pinMode(sensorOut, INPUT);
  
  // Setting frequency scaling to 20%
  digitalWrite(S0,HIGH);
  digitalWrite(S1,LOW);
  
   // Begins serial communication 
  Serial.begin(9600);
}

void loop() {
  // Setting RED (R) filtered photodiodes to be read
  digitalWrite(S2,LOW);
  digitalWrite(S3,LOW);
  delay(100);

  // Reading the output frequency
  R = pulseIn(sensorOut, LOW);
  R = map(R, 27, 66, 255, 0);
   // Printing the RED (R) value
  Serial.print("R = ");
  Serial.print(R);
  delay(100);
  
  // Setting GREEN (G) filtered photodiodes to be read
  digitalWrite(S2,HIGH);
  digitalWrite(S3,HIGH);
  delay(100);
  // Reading the output frequency
  G = pulseIn(sensorOut, LOW);
  G = map(G, 43,66,255,0);;
  // Printing the GREEN (G) value  
  Serial.print(" G = ");
  Serial.print(G);
  delay(100);
 
  // Setting BLUE (B) filtered photodiodes to be read
  digitalWrite(S2,LOW);
  digitalWrite(S3,HIGH);
  delay(100);
  // Reading the output frequency
  B = pulseIn(sensorOut, LOW);
  B = map(B, 31,56,255,0);;
  // Printing the BLUE (B) value 
  Serial.print(" B = ");
  Serial.println(B);
  delay(1000);
}