int red = 13;
int green = 12;
int blue = 11;
int output;
int dt=1000;
void setup() {
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);
  Serial.begin(9600);
  Serial.println("Enter a number from 1 to 7:");
}

void loop() {
  if (Serial.available() > 0) {
    char input = Serial.read();
    output = input - '0'; // Convert char to int

    switch (output) {
      case 1:
        digitalWrite(red, HIGH);
        digitalWrite(green, LOW);
        digitalWrite(blue, LOW);
        Serial.println("Its Red");
        break;
      case 2:
        digitalWrite(red, LOW);
        digitalWrite(green, HIGH);
        digitalWrite(blue, LOW);
        Serial.println("Its Green");
        break;
      case 3:
        digitalWrite(red, LOW);
        digitalWrite(green, LOW);
        digitalWrite(blue, HIGH);
        Serial.println("Its Blue");
        break;
      case 4:
        digitalWrite(red, HIGH);
        digitalWrite(green, HIGH);
        digitalWrite(blue, LOW);
        Serial.println("Its Yellow");
        break;
      case 5:
        digitalWrite(red, LOW);
        digitalWrite(green, HIGH);
        digitalWrite(blue, HIGH);
        Serial.println("Its Sky Blue");
        break;
      case 6:
        digitalWrite(red, HIGH);
        digitalWrite(green, LOW);
        digitalWrite(blue, HIGH);
        Serial.println("Its Purple");
        break;
      case 7:
        digitalWrite(red, HIGH);
        digitalWrite(green, HIGH);
        digitalWrite(blue, HIGH);
        Serial.println("Its White");
        break;
      default:
        digitalWrite(red, LOW);
        digitalWrite(green, LOW);
        digitalWrite(blue, LOW);
        Serial.println("Its Off");
        break;
    }
    delay(dt);
  Serial.println("Enter a number from 1 to 7:");

  }
}

// int red=13;
// int green=12;
// int blue=11;
// int dt=250;
// int output;
// void setup() {
//   // put your setup code here, to run once:
// pinMode(red, OUTPUT);
// pinMode(green, OUTPUT);
// pinMode(blue, OUTPUT);
// Serial.begin(9600);
// Serial.println("enter 1 to 7");
// }

// void loop() {
//   // put your main code here, to run repeatedly:
// if(Serial.available()>0){
// String input= Serial.readStringUntil('\n');
// output = input.toInt();
// if(output==1)
// {
//   digitalWrite(red, HIGH);
//   digitalWrite(green, LOW);
//   digitalWrite(blue, LOW);
// }
// else if(output==2)
// {
//   digitalWrite(red, LOW);
//   digitalWrite(green, HIGH);
//   digitalWrite(blue, LOW);
// }
// else if(output==3)
// {
//   digitalWrite(red, LOW);
//   digitalWrite(green, LOW);
//   digitalWrite(blue, HIGH);
// }
// else if(output==4)
// {
//   digitalWrite(red, HIGH);
//   digitalWrite(green, HIGH);
//   digitalWrite(blue, LOW);
// }
// else if(output==5)
// {
//   digitalWrite(red, LOW);
//   digitalWrite(green, HIGH);
//   digitalWrite(blue, HIGH);
// }
// else if(output==6)
// {
//   digitalWrite(red, HIGH);
//   digitalWrite(green, LOW);
//   digitalWrite(blue, HIGH);
// }
// else if(output==7)
// {
//   digitalWrite(red, HIGH);
//   digitalWrite(green, HIGH);
//   digitalWrite(blue, HIGH);
// }
// else 
// {
//   digitalWrite(red, LOW);
//   digitalWrite(green, LOW);
//   digitalWrite(blue, LOW);
// }
// }
// Serial.println("enter 1 to 7");
// }