Assignment 2.2

Post date: Jun 20, 2010 9:52:51 PM

code for LED wave:

void setup() // run once, when the sketch starts

{ // even though there's nothing in it

} // we still need this process

void loop() // run over and over again

{

for (int ledPin = 13; ledPin >= 4; ledPin--) // Declares ledPin,

// tests if equal to or greater than 4

// then does the following. It repeats

// but decreases the value of ledPin by 1

{

pinMode(ledPin, OUTPUT); // sets the digital pin as output

digitalWrite(ledPin, HIGH); // sets the LED-ledPin on

delay(75); // waits for 75 milliseconds

digitalWrite(ledPin, LOW); // sets the LED-ledPin off

}

for (int ledPin = 4; ledPin <=13; ledPin++) // Declares ledPin,

// tests if equal to or less than 13

// then does the following. It repeats

// but increases the value of ledPin by 1

{

pinMode(ledPin, OUTPUT); // sets the digital pin as output

digitalWrite(ledPin, HIGH); // sets the LED-ledPin on

delay(75); // waits for 75 milliseconds

digitalWrite(ledPin, LOW); //set the LED-ledPin off

}

}

P.S.

This way is much easier than my previous try.