int crvPin = 11;
int zelPin = 10;
int sinPin = 9;
String prasanje = "Koja boja sakate da sveti?";
String odgovor;

void setup() {
  pinMode (crvPin, OUTPUT);
  pinMode (zelPin, OUTPUT);
  pinMode (sinPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  Serial.println(prasanje);
  while (Serial.available() == 0){
  }
  odgovor = Serial.readString();
  Serial.println(odgovor);

  if (odgovor == "crna"){
    analogWrite(crvPin, 255);
    analogWrite(zelPin, 255);
    analogWrite(sinPin, 255);
  }
  if (odgovor == "crvena"){
    analogWrite(crvPin, 0);
    analogWrite(zelPin, 255);
    analogWrite(sinPin, 255);
  }
  if (odgovor == "zolta"){
    analogWrite(crvPin, 0);
    analogWrite(zelPin, 0);
    analogWrite(sinPin, 255);
  }
  if (odgovor == "zelena"){
    analogWrite(crvPin, 255);
    analogWrite(zelPin, 0);
    analogWrite(sinPin, 255);
  }
  if (odgovor == "plava"){
    analogWrite(crvPin, 255);
    analogWrite(zelPin, 0);
    analogWrite(sinPin, 0);
  }
  if (odgovor == "sina"){
    analogWrite(crvPin, 255);
    analogWrite(zelPin, 255);
    analogWrite(sinPin, 0);
  }
  if (odgovor == "violetova"){
    analogWrite(crvPin, 0);
    analogWrite(zelPin, 255);
    analogWrite(sinPin, 0);
  }
  if (odgovor == "bela"){
    analogWrite(crvPin, 0);
    analogWrite(zelPin, 0);
    analogWrite(sinPin, 0);
  }
}