- Processing
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- Processing Foundation

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

Class | Serial
Name | ### read()
Examples |
    // Example by Tom Igoe

    import processing.serial.*;

    Serial myPort;  // The serial port

    void setup() {
      // List all the available serial ports
      printArray(Serial.list());
      // Open the port you are using at the rate you want:
      myPort = new Serial(this, Serial.list()[0], 9600);
    }

    void draw() {
      while (myPort.available() > 0) {
        int inByte = myPort.read();
        println(inByte);
      }
    }
Description | Returns a number between 0 and 255 for the next byte that's waiting in the buffer. Returns -1 if there is no byte, although this should be avoided by first cheacking available() to see if data is available.
Syntax |
    serial.read()
Parameters |
serial | Serial: any variable of type Serial
Returns | int

Updated on July 4, 2018 11:56:46am EDT