import java.io.DataInputStream;
import java.io.DataOutputStream;

import lejos.nxt.LCD;
import lejos.nxt.MotorPort;
import lejos.nxt.comm.BTConnection;
import lejos.nxt.comm.Bluetooth;

public class BTReceiverP {

	public static void main(String[] args) throws Exception {

		Bluetooth.setFriendlyName(BTUtils.stringToByteName(BTUtils.RECEIVER_NAME));
		
		MotorPort speaker = MotorPort.A;
		String connected = "Connected";
		String waiting = "Waiting";
		LCD.drawString(waiting, 0, 0);
		LCD.refresh();

		BTConnection btc = Bluetooth.waitForConnection();

		LCD.clear();
		LCD.drawString(connected, 0, 0);
		LCD.refresh();

		DataInputStream dis = new DataInputStream(btc.openInputStream());
		DataOutputStream dos = new DataOutputStream(btc.openOutputStream());

		while (true) {

			int x = dis.readByte();

			speaker.controlMotor(x * 10, 1);
			
			dos.writeByte((byte) 0xFF); // Ack
			dos.flush();

			LCD.drawInt(x, 4, 0, 1);
			LCD.refresh();
		}
	}
}