diff --git a/build/shared/examples/02.Digital/BlinkWithoutDelay/BlinkWithoutDelay.ino b/build/shared/examples/02.Digital/BlinkWithoutDelay/BlinkWithoutDelay.ino
index ca4ac95fadd..6b8ae577d33 100644
--- a/build/shared/examples/02.Digital/BlinkWithoutDelay/BlinkWithoutDelay.ino
+++ b/build/shared/examples/02.Digital/BlinkWithoutDelay/BlinkWithoutDelay.ino
@@ -5,9 +5,12 @@
  can run at the same time without being interrupted by the LED code.
 
  The circuit:
- * LED attached from pin 13 to ground.
- * Note: on most Arduinos, there is already an LED on the board
- that's attached to pin 13, so no hardware is needed for this example.
+ * Use the onboard LED.
+ * Note: Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO 
+  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
+  the correct LED pin independent of which board is used.
+  If you want to know what pin the on-board LED is connected to on your Arduino model, check
+  the Technical Specs of your board  at https://www.arduino.cc/en/Main/Products
 
  created 2005
  by David A. Mellis
@@ -15,6 +18,8 @@
  by Paul Stoffregen
  modified 11 Nov 2013
  by Scott Fitzgerald
+ modified 9 Jan 2017
+ by Arturo Guadalupi
 
 
  This example code is in the public domain.
@@ -23,7 +28,7 @@
  */
 
 // constants won't change. Used here to set a pin number :
-const int ledPin =  13;      // the number of the LED pin
+const int ledPin =  LED_BUILTIN;// the number of the LED pin
 
 // Variables will change :
 int ledState = LOW;             // ledState used to set the LED