void comms(int detectionHash, int groupNumber) {
  bool done = false;
  char incoming;
  unsigned long t = millis();
  int groups[5] = {0};

  char start;

  if(groupNumber == 1){
    start = 'a';
  }
  else if (groupNumber == 2){
    start = 'f';
  }
  else if (groupNumber == 3){
    start = 'k';
  }
  else if (groupNumber == 4){
    start = 'p';
  }
  else if (groupNumber == 5){
    start = 'u';
  }else{
    return;
  }

  int scores[5];
  scores[groupNumber] = detectionHash;
  while (!done) {
    Serial2.println((char)(start + detectionHash - 1));
    if (Serial2.available()) {
      incoming = Serial2.read();
    }
    if (millis() - t > 30000) {
      done = true;//emergency condition
    }
    //decoder
    char input = incoming;
    if (input >= 'a' && input <= 'e') {
      scores[0] = input - 'a' + 1;
    }
    else if (input >= 'f' && input <= 'j') {
      scores[1] = input - 'f' + 1;
    }
    else if (input >= 'k' && input <= 'o') {
      scores[2] = input - 'k' + 1;
    }
    else if (input >= 'p' && input <= 't') {
      scores[3] = input - 'p' + 1;
    }
    else if (input >= 'u' && input <= 'y') {
      scores[4] = input - 'u' + 1;
    }

    if (scores[0] != 0 && scores[1] != -1 && scores[2] != -1 && scores[3] != -1 && scores[4] != -1) {
      done = true;
    }
  }

  int lowest = min(min(min(scores[0], scores[1]), scores[2]), scores[3]);

  if (scores[4] == 5) {
    Serial3.println("Crazy");//go crazy or something
  }
  else if (scores[4] == lowest) {
    Serial3.println("Dino wins");//dino wins
  }
  else if (scores[4] != lowest) {
    Serial3.println("Dino loses");//dino loses
  }
}