Android Send Bluetooth Message Receives Space Character

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I am making communication between an 2013 Nexus 7 with Android 4.4.4 and an Arduino Mega 2560 with an HC-06 bluetooth unit. I have established a connection from the Nexus 7 to the HC-06 and have gotton data to the Nexus from the Arduino but I am unable to transfer data from the Nexus 7 to the Arduino. I get no errors when I transfer data in Android, but the Arduino receives a space instead of the character I sent.

Android write method:

public void write(String message) {
        Log.d(TAG, "...Data to send: " + message + "...");
        byte[] msgBuffer = message.getBytes();
        try {
            mmOutStream.write(msgBuffer);
        } catch (IOException e) {
            Log.e(TAG, "...Error data send: " + e.getMessage() + "...");
        }
    }

Sends data:

public static void sendInfo(String info) {
    boolean isErr = false;
    if (MainActivity.isConnected) {
        Log.d(TAG, "In sentInfo()");
        //Log.d(TAG, "...Data to send: " + info + "...");
        //TO(done)DO: send info to bluetooth device (Arduino)
        byte[] msg = info.getBytes();


        try {
            mConnectedThread.write(info);
        } catch (NullPointerException n) {
            isErr = true;
            Log.e("Error", "Failed to send message \"" + Arrays.toString(msg) + "\" with error \"" + n.getMessage() + ".\"");
        }

        if (!isErr) {
            Log.i("sentInfo", "In sentInfo(), this was sent: " + Arrays.toString(msg));
            //noinspection ALL
            isErr = false;
        }
    } else {
        Toast.makeText(MainActivity.mThis, "Please connect the Arduino", Toast.LENGTH_SHORT).show();
    }
}

Arduino receive code:

int setMsg() {
   if (Serial1.available() > 0) {
      chars = Serial1.available();
      incomingByte = Serial1.read();
      putstring("You've Got Mail!  Characters: ");
      Serial.print(chars);
      putstring("  Message: '");
      Serial.print(incomingByte);
      putstring_nl("'.");
      if        (incomingByte == 49) {
         return 1;
         flashLED(500);
         Serial.println(msg);
      } else if (incomingByte == 50) {
         return 2;
         flashLED(500);
         Serial.println(msg);
     } else if (incomingByte == 51) {
         return 3;
         flashLED(500);
         Serial.println(msg);
      } else if (incomingByte == 52) {
         return 4;
         flashLED(500);
         Serial.println(msg);
      } else if (incomingByte == 53) {
         return 5;
         flashLED(500);
         Serial.println(msg);
      } else if (incomingByte == 100) {
         return 6;
         flashLED(500);
         Serial.println(msg);
      } else {
         Serial.println(incomingByte);
         digitalWrite(ledPin, HIGH);
         delay(3250);
         digitalWrite(ledPin, LOW);
         delay(20);
      }
   }
}

Please explain why the Arduino's Serial always prints You've Got Mail! Characters: 1 Message: ' '. when the Nexus 7 sends any message (I only send numbers in quotes to the sendInfo() function) to the HC-06.

asked 1 min ago

Fizz Binn

6

Android Send Bluetooth Message Receives Space Character