close() / Libraries / Processing.org

Name

close()

Class

LED

Description

Restores the previous state

Without calling this function the LED will remain in the current state even after the sketch has been closed.

Examples

import processing.io.*;
LED greenLed;
boolean ledOn = false;

void setup() {
  // the green LED is led0 on the Raspberry Pi
  greenLed = new LED("led0");
  frameRate(1);
}

void draw() {
  ledOn = !ledOn;
  if (ledOn) {
  	greenLed.brightness(1.0);
  } else {
  	greenLed.brightness(0.0);
  }
}

// cleanup on keypress
void keyPressed() {
  led.close();
  exit();
}

Syntax

.close()

Return

void

Creative Commons License

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