Initial Commit

Java/Processing/processing-3.3.6/modes/java/libraries/io/examples/SimpleOutput/SimpleOutput.pde

@@ -0,0 +1,25 @@
+import processing.io.*;
+boolean ledOn = false;
+
+// GPIO numbers refer to different phyiscal pins on various boards
+// On the Raspberry Pi GPIO 4 is physical pin 7 on the header
+// see setup.png in the sketch folder for wiring details
+
+void setup() {
+  GPIO.pinMode(4, GPIO.OUTPUT);
+  frameRate(0.5);
+}
+
+void draw() {
+  // make the LED blink
+  ledOn = !ledOn;
+  if (ledOn) {
+    GPIO.digitalWrite(4, GPIO.LOW);
+    fill(204);
+  } else {
+    GPIO.digitalWrite(4, GPIO.HIGH);
+    fill(255);
+  }
+  stroke(255);
+  ellipse(width/2, height/2, width*0.75, height*0.75);
+}