Processing 1.0 - Processing Discourse - Connecting to serial port in the draw() phase

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Index › Programming Questions & Help › Electronics, Serial Library › Connecting to serial port in the draw() phase

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Connecting to serial port in the draw() phase (Read 1283 times)

Augusto

Connecting to serial port in the draw() phase
Dec 26^th, 2009, 7:46pm

I've written two simple sketches, one were I connect to a Serial port through the setup() phase, and the other were I do some scans first, and then I connect to a serial port in the draw() phase.

In the first case, Processing waits for the connection to be successful before running the rest of the code, but in the second, it runs the rest of the code before it event got a steady connection.

How can I control this? How can I wait for a solid connection before running the rest of the code?

NoahBuddy

Re: Connecting to serial port in the draw() phase
Reply #1 - Dec 27^th, 2009, 12:04am

At first thought, test if your serial object is null.
(keep in mind I am not trying this as I type)
Code:

void draw() {
  ...
  if (readyForSerial) {
    mySerial = new Serial(this, "COM#", 9600);
    readyForSerial = false; //don't reconnect every frame
  }
  ...
  if (mySerial != null) {
    //do stuff
  } //else don't do stuff
}

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