Reorganise IDE examples

examples/ide/qtcreator/src/main.c

@@ -1,25 +1,15 @@
 #include "Arduino.h"
-/*
-  Blink
-  Turns on an LED on for one second, then off for one second, repeatedly.
- 
-  This example code is in the public domain.
-*/
- 
-int led = 1; // blink 'digital' pin 1 - AKA the built in red LED
 
-// the setup routine runs once when you press reset:
+// Most Arduino boards already have a LED attached to pin 13 on the board itself
+#define LED_PIN 13
+
 void setup() {
-  // initialize the digital pin as an output.
-  pinMode(led, OUTPUT);
-
+  pinMode(LED_PIN, OUTPUT);     // set pin as output
 }
 
-// the loop routine runs over and over again forever:
 void loop() {
-    digitalWrite(led, HIGH); 
-    delay(1000);
-    digitalWrite(led, LOW);
-    delay(1000);
+  digitalWrite(LED_PIN, HIGH);  // set the LED on
+  delay(1000);                  // wait for a second
+  digitalWrite(LED_PIN, LOW);   // set the LED off
+  delay(1000);                  // wait for a second
 }
-