Data Sheet
Guide  V1.0     
Email: keen@elecrow.com    Web: www.elecrow.com  ---Designed by Elecrow Keen 
17 
If you fail to open, use the Adobe reader to open this document. 
int 
setup() 
pinMode() 
OUTPUT 
loop() 
HIGH 
LOW 
digitalWrite() 
digitalRead() 
delay()   
; (semicolon) 
{} (curly braces) 
= (assign)   
// (comment) 
Application effect 
Turns on an LED on for one second, then off for one second, repeatedly. 
Lesson 2: LED trailing effects 
Overview 
This lesson will teach you how to show 6 LED trailing effects. 










