Change delay to 3 seconds

blink.ino

@@ -1,24 +1,24 @@
 /*
   Blink
   Turns on an LED on for one second, then off for one second, repeatedly.
-
+ 
   This example code is in the public domain.
  */
-
+ 
 // Pin 13 has an LED connected on most Arduino boards.
 // give it a name:
 int led = 13;
 
 // the setup routine runs once when you press reset:
-void setup() {
+void setup() {                
   // initialize the digital pin as an output.
-  pinMode(led, OUTPUT);
+  pinMode(led, OUTPUT);     
 }
 
 // the loop routine runs over and over again forever:
 void loop() {
   digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
   delay(3000);               // wait for a second
   digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
-  delay(5000);               // wait for a second
-}
+  delay(3000);               // wait for a second
+}