/*
  BlinkMe3
  Turn an LED on and off once per second (another improved version).
 */

// use variable ledPin to store the pin number that drives the LED
int ledPin = 13;

// define the LED's on and off times in milliseconds
int onTime = 1000;
int offTime = 1000;

void setup() {                
  pinMode(ledPin, OUTPUT);      // make ledPin an output
}

void loop() {
  digitalWrite(ledPin, HIGH);   // turn the LED on
  delay(onTime);                // wait onTime mS
  digitalWrite(ledPin, LOW);    // turn the LED off
  delay(offTime);               // wait offTime mS
}