Name

read()

Class

Serial

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.

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);
      }
    }
    
    

Syntax

  • serial.read()

Parameters

  • serial(Serial) any variable of type Serial

Return

  • int