This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.



// Example by Tom Igoe

import processing.serial.*;

Serial myPort;    // The serial port
PFont myFont;     // The display font
String inString;  // Input string from serial port
int lf = 10;      // ASCII linefeed

void setup() {
  // Make your own font. It's fun!
  myFont = loadFont("ArialMS-18.vlw");
  textFont(myFont, 18);
  // List all the available serial ports:
  // Open the port you are using at the rate you want:
  myPort = new Serial(this, Serial.list()[0], 9600);

void draw() {
  text("received: " + inString, 10,50);

void serialEvent(Serial p) {
  inString = p.readString();

Description Sets a specific byte to buffer until before calling serialEvent().
Updated on August 6, 2015 11:06:29pm UTC

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