Program termination?

[alinaqi]

Hi, I am experiencing a problem in the code written below. In this code , only first line in void loop runs continuously. I can't see LED at 13 to switch off. Is there any problem with my arduino mega?

void setup() {
 pinMode(13,OUTPUT);
}

void loop() {
   // Clears the trigPin
  digitalWrite(13,1);
  delay(1000);
  digitalWrite(13,0);
}

[Budvar10]

Maybe another delay after second digital write would help.

[b707]

try this

void loop() {
   // Clears the trigPin
  digitalWrite(13,1);
  delay(1000);
  digitalWrite(13,0);
  delay(1000);
}

[madmark2150]

The loop repeats so fast, try adding a 2nd delay:

void loop() {
   // Clears the trigPin
  digitalWrite(13,1);
  delay(1000);
  digitalWrite(13,0);
  delay(1000);
}

[alinaqi]

Thanks

[ruilviana]

Try this:

void setup() {
 pinMode(13,OUTPUT);
}

void loop() {
  digitalWrite(13,!digitalRead(13));
  delay(1000);
}