       Serial.println("--Received: " + msg);
       String command = getCommand(msg);
       Serial.println("Command: '" + command + "'");
-      if (command.startsWith("GET_GAMEID")){  //TODO pasar arriba string
-        String reply = "GAMEID " + String(GAME_ID) + END_CHAR;
+      if (command.startsWith(CMD_GET_GAMEID)){  //TODO pasar arriba string
+        String reply = MSG_GAMEID + SEP_CHAR_COMMANDS + String(GAME_ID) + END_CHAR;
         Serial.println("--Sending: '" + reply + "'");
         Serial1.print(reply);
       }
-      else if (command.startsWith("PLAY")){
+      else if (command.startsWith()){
         String reply = "OK" + END_CHAR;
         Serial.println("--Sending: " + reply);
         Serial1.print(reply);

String CMD_WAIT_FOR_TURN = "WAIT_FOR_TURN";
String CMD_RIVAL_MOVE = "RIVAL_MOVE"; // # rival_id move
String CMD_ACK = "ACK"; // rival_id move


// Baseboard screen

String MSG_FIND_GAME = "FIND_GAME"; // id
String MSG_DO_MOVE =  "DO_MOVE"; // id movement(0..8)
String MSG_GET_MOVE = "GET_MOVE"; // id
String MSG_GAMEID = "GAMEID"; //id
String END_CHAR = "\r"; 
String SEP_CHAR_COMMANDS = " ";
String SEP_CHAR_PARAMETERS = ",";
