#include <DFPlayer_Mini_Mp3.h>
void printDetail(uint8_t type, int value);


#define S0 4
#define S1 5
#define S2 7
#define S3 6
#define sensorOut 8

int frequency = 0;
int color = 0;


void setup() {

  Serial2.begin (9600);
  mp3_set_serial (Serial2);  //set softwareSerial for DFPlayer-mini mp3 module
  mp3_set_volume (25);

  Serial.begin(115200);

  pinMode(S0, OUTPUT);
  pinMode(S1, OUTPUT);
  pinMode(S2, OUTPUT);
  pinMode(S3, OUTPUT);
  pinMode(sensorOut, INPUT);
  //Setting frequency-scaling
  digitalWrite(S0, HIGH);
  digitalWrite(S1, LOW);

  Serial.println();
}


void loop() {

    color = readColor();
    delay(10);
    switch (color) {
      case 1:
        Serial.println("\t\t\tRED detected!");
        // ./mp3/0001.mp3
        mp3_play (1);
        delay (3000);
        mp3_stop ();
        break;

      case 2:
        Serial.println("\t\t\tBLUE detected!");
        // ./mp3/0002.mp3
        mp3_play (2);
        delay (3000);
        mp3_stop ();
        break;

      case 3:
        Serial.println("\t\t\tGREEN detected!");
        // ./mp3/0003.mp3
        mp3_play (3);
        delay (3000);
        mp3_stop ();
        break;


      case 4:
        Serial.println("\t\t\tWHITE detected!");
        // ./mp3/0004.mp3
        mp3_play (4);
        delay (3000);
        mp3_stop ();
        break;

      case 5:
        Serial.println("\t\t\tORANGE detected!");
        // ./mp3/0005.mp3
        mp3_play (5);
        delay (3000);
        mp3_stop ();
        break;

      case 6:
        Serial.println("\t\t\tBLACK detected!");
        // ./mp3/0006.mp3
        mp3_play (6);
        delay (3000);
        mp3_stop ();
        break;

      case 7:
        Serial.println("\t\t\tYELLOW detected!");
         // ./mp3/0007.mp3
        mp3_play (7);
        delay (3000);
        mp3_stop ();

        break;
      case 8:
        Serial.println("\t\t\tPURPLE detected!");
         // ./mp3/0008.mp3
        mp3_play (8);
        delay (3000);
        mp3_stop ();

        break;
      case 0:
        break;
    }
    color = 0;

}


//Read-Color Function

int readColor() {

  ////////////////////////////////////////////////////////

  //Setting red filtered photodiodes to be read

  digitalWrite(S2, LOW);
  digitalWrite(S3, LOW);


  //Reading the output frequency
  frequency = pulseIn(sensorOut, LOW);
  int R = frequency;
  //Printing the value on the serial monitor
  Serial.print("R= ");  //printing name
  Serial.print(frequency);  //printing RED color frequency
  Serial.print("  ");
  delay(50);

  ////////////////////////////////////////////////////////

  //Setting Green filtered photodiodes to be read

  digitalWrite(S2, HIGH);
  digitalWrite(S3, HIGH);

  //Reading the output frequency
  frequency = pulseIn(sensorOut, LOW);
  int G = frequency;

  //Printing the value on the serial monitor
  Serial.print("G= ");  //printing name
  Serial.print(frequency);  //printing RED color frequency
  Serial.print("  ");
  delay(50);

  ////////////////////////////////////////////////////////

  //Setting Blue filtered photodiodes to be read

  digitalWrite(S2, LOW);
  digitalWrite(S3, HIGH);

  //Reading the output frequency
  frequency = pulseIn(sensorOut, LOW);
  int B = frequency;

  //Printing the value on the serial monitor
  Serial.print("B= ");  //printing name
  Serial.print(frequency);  //printing RED color frequency
  Serial.println("  ");
  delay(50);

  ////////////////////////////////////////////////////////

  if (R<75 & R>50 && G < 250 && G > 110 && B < 160 && B > 90  ) {
    color = 1; // Red
  }
  else if (R<45 & R>30 && G < 40 && G > 25 && B < 30 && B > 10  ) {
    color = 2; // Blue
  }
  else if (R<45 & R>30 && G < 40 && G > 25 && B < 250 && B > 200  ) {
    color = 3; // Green
  }
  else if (R<35 & R>4 && G < 45 && G > 15 && B < 40 && B > 10  ) {
    color = 4; // WHITE
  }
  else if (R<40 & R>15 && G < 130 && G > 50 && B < 150 && B > 50  ) {
    color = 5; // ORANGE
  }
  else if (R<270 & R>240 && G < 300 && G > 270 && B < 210 && B > 190  ) {
    color = 6; // BLACK
  }
  else if (R<30 & R>15 && G < 41 && G > 28 && B < 60 && B > 42  ) {
    color = 7; // YELLOW
  }
  else if (R<150 & R>100 && G < 250 && G > 200 && B < 250 && B > 200  ) {
    color = 8; // PURPLE
  }
  return color;
}