Light-Emitting Diodes (LEDs) - SparkFun Learn
Powering LilyPad LED Projects - SparkFun Learn
LilyPad ProtoSnap Plus Activity Guide - SparkFun Learn
LP55231 Breakout Board Hookup Guide - SparkFun Learn
Light-Emitting Diodes (LEDs) - SparkFun Learn
LilyPad Development Board Activity Guide - SparkFun Learn
Activity Guide for SparkFun Tinker Kit - SparkFun Learn
Interactive Hanging LED Array - SparkFun Learn
LuMini 8x8 Matrix Hookup Guide - SparkFun Learn
LED Butterfly Pop Up Card - SparkFun Learn
Why resistor position matters? (Simple led project) - General Electronics - Arduino Forum