package skl;

import java.io.*;
import gnu.io.*;
import java.util.*;

public class ArduinoConnection{
	private SerialPort serialPort;
	//array port yang akan digunakan
	private String PORT_NAMES[] = {
			"/dev/ttyACM0",
			"/dev/ttyACM1",
			"/dev/ttyACM2"};
	//var memasukan input ke port
	private InputStream input;
	//var memasukan output ke port
	private OutputStream output;
	//jarak untuk menunggu respon serial port
	private int TIME_OUT = 2000;
	//jumlah bit per detik
	private int DATA_RATE = 9600;
	//
	public CommPortIdentifier portId;

	public void Setup(){
		portId = null;
		Enumeration portEnum = CommPortIdentifier.getPortIdentifiers();

		//mencek port aktif
		while(portEnum.hasMoreElements()){
			CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement();
			for(String portName : PORT_NAMES) {
				if(currPortId.getName().equals(portName)){
					portId = currPortId;
					break;
				}
			}

			//apa bila port tidak tersedia
			if(portId == null){
				System.out.println("Port Tidak Ditemukan");
				return;
			}

			open();
		}
	}

	public void open(){
		System.out.println("Open Connections");
		try{
			//membuka serial port
			serialPort = (SerialPort) portId.open(this.getClass().getName(),
					TIME_OUT);

			//tentukan port parameter
			serialPort.setSerialPortParams(
					DATA_RATE,
					SerialPort.DATABITS_8,
					SerialPort.STOPBITS_1,
					SerialPort.PARITY_NONE);
			input = serialPort.getInputStream();
			output = serialPort.getOutputStream();
		}catch(Exception e){
			System.err.println(e.toString());
		}
	}


	public void Kirim(int pin){
		try {
			System.out.println(pin);
			output.write(pin);
		} catch (Exception e) {
			System.out.println(e);
		}
	}

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