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.