private static String _guessWindowsPortName(ArrayList<String> portNames) {
/*
// if the for loop below this comment block does not work right,
// try using the code in this comment block instead
String portName = null;
for(int n=1; n<10; n++)
{
portName = "COM" + n;
SerialPort port = new SerialPort(portName);
try
{
port.open();
port.close();
break;
}
catch(Exception exn)
{}
}
return portName;*/
for (String portName : portNames) {
SerialPort port = new SerialPort(portName);
try {
port.open();
port.close();
return portName;
} catch (Exception exn) {
}
}
return null;
}
public void connect() {
_serialPort.setBaud(115200);
_serialPort.setParity(gnu.io.SerialPort.PARITY_NONE);
_serialPort.setDataBits(gnu.io.SerialPort.DATABITS_8);
_serialPort.setStopBits(gnu.io.SerialPort.STOPBITS_1);
_serialPort.setFlowControl(gnu.io.SerialPort.FLOWCONTROL_NONE);
_serialPort.open();
try {
for (int n = 0; n < 20; n++) {
_serialPort.writeLn("99"); // writeLn flushes automatically
Thread.sleep(250);
if (_serialPort.available() > 0) {
String response = _serialPort.readLine();
if (response.equals("11")) {
Thread.sleep(250);
while (_serialPort.available() > 0) _serialPort.readChar();
_isConnected = true;
return;
}
_serialPort.close();
throw new RuntimeException(
"Arduino.connect: Arduino board present but running incorrect firmware on port "
+ _serialPort.getName());
}
Thread.sleep(250);
}
} catch (InterruptedException e) {
throw new RuntimeException(
"Arduino.connect: interrupted while waiting for response from Arduino on port"
+ _serialPort.getName());
}
_serialPort.close();
throw new RuntimeException(
"Arduino.connect: Arduino board present but running incorrect firmware on port "
+ _serialPort.getName());
}
