sparkfun KIT-14556, Experiment Manual

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/*
SparkFun Tinker Kit
Example sketch 04
MULTIPLE LEDs
Make six LEDs dance. Dance LEDs, dance!
This sketch was written by SparkFun Electronics,
with lots of help from the Arduino community.
This code is completely free for any use.
Visit http://learn.sparkfun.com/products/2 for SIK informatio
n.
Visit http://www.arduino.cc to learn more about Arduino.
*/
// To keep track of all the LED pins, we'll use an "array."
// An array lets you store a group of variables, and refer to
them
//
by their position, or "index." Here we're creating an arra
y of
// six integers, and initializing them to a set of values:
int ledPins[] = {4,5,6,7,8,9};
void setup()
{
//create a local variable to store the index of which pin w
e want to control
int index;
// For the for() loop below, these are the three statements:
// 1. index = 0; Before starting, make index = 0.
// 2. index <= 5; If index is less or equal to 5, run th
e following code
// 3. index++ Putting "++" after a variable means "add o
ne to it".
// When the test in statement 2 is finally false, the sketch
// will continue.
// This for() loop will make index = 0, then run the pinMode
()
// statement within the brackets. It will then do the same t
hing
// for index = 2, index = 3, etc. all the way to index = 5.
for(index = 0; index <= 5; index++)
{
pinMode(ledPins[index],OUTPUT);
}
}
void loop()
{
// This loop() calls functions that we've written further be
low.
// We've disabled some of these by commenting them out (putt
ing
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