Making Things Talk

THE SIMPLEST NETWORK 61

Open the Processing application and

enter the following code:

/*

Serial String Reader

Language: Processing

reads in a string of characters from a serial port

until it gets a linefeed (ASCII 10).

Then splits the string into sections separated by commas.

Then converts the sections to ints, and prints them out.

*/

import processing.serial.*; // import the Processing serial library

int linefeed = 10; // Linefeed in ASCII

Serial myPort; // The serial port

void setup() {

// List all the available serial ports

println(Serial.list());

// I know that the first port in the serial list on my mac

// is always my Arduino module, so I open Serial.list()[0].

// Change the 0 to the appropriate number of the serial port

// that your microcontroller is attached to.

myPort = new Serial(this, Serial.list()[0], 9600);

// read bytes into a buffer until you get a linefeed (ASCII 10):

myPort.bufferUntil(linefeed);

}

void draw() {

// twiddle your thumbs

}

// serialEvent method is run automatically by the Processing sketch

// whenever the buffer reaches the byte value set in the bufferUntil()

// method in the setup():

void serialEvent(Serial myPort) {

// read the serial buffer:

String myString = myPort.readStringUntil(linefeed);

// if you got any bytes other than the linefeed:

if (myString != null) {

»

Try It

easier to send the data as ASCII. ...