- Processing
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- Processing.py
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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 | ### readStringUntil()
Examples |
    // Example by Tom Igoe

    import processing.serial.*;

    int lf = 10;    // Linefeed in ASCII
    String myString = null;
    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);
      myPort.clear();
      // Throw out the first reading, in case we started reading
      // in the middle of a string from the sender.
      myString = myPort.readStringUntil(lf);
      myString = null;
    }

    void draw() {
      while (myPort.available() > 0) {
        myString = myPort.readStringUntil(lf);
        if (myString != null) {
          println(myString);
        }
      }
    }
Description | Combination of readBytesUntil() and readString(). Returns null if it doesn't find what you're looking for.
Syntax |
    serial.readStringUntil(inByte)
Parameters |
serial | Serial: any variable of type Serial
inByte | int: character designated to mark the end of the data
Returns | String

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