Page 43 - The Definitive Guide to Building Java Robots

Preston_5564C02.fm Page 24 Wednesday, September 14, 2005 5:42 AM

24 CHAPTER 2 ■ SERIAL COMMUNICATION

// set config parms
serialPort.setSerialPortParams(baud,
SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
serialPort
.setFlowControlMode(SerialPort.FLOWCONTROL_NONE);
Utils.pause(50);
// config output stream
outputStream = serialPort.getOutputStream();
// config input stream
inputStream = serialPort.getInputStream();
// add events listener
serialPort.addEventListener(this);
serialPort.notifyOnDataAvailable(true);
Thread.sleep(50); // waits till ports change state.
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}

public byte[] read() {
while (!dataIn) {
try {
Thread.sleep(1);
} catch (Exception e) {
}
}
dataIn = false;
return readBuffer;
}

public String readString() {
byte[] b = read();
StringBuffer s = new StringBuffer();
for (int i = 0; i < b.length; i++) {
if (b[i] != 0) {
int in = (int) b[i];
if (in < 0) {
in = in + 256;
}
s.append(in);
s.append("~");
}
}

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