Build your first Arduino circuit with an LED and learn how to write code to blink it on and off at any rate you choose to create custom animations.
Blink Arduino Documentation
5 LED blinking using Arduino UNO
Arduino Led Interfacing, Arduino Blinking Led
Blink an LED With Digital Output : 6 Steps - Instructables
Lesson 1 Blinking LED — SunFounder uno-and-mega-kit documentation
How to Connect & Blink an LED with Arduino
L2: Blinking an LED - Physical Computing
Hello world Program - LED Blink - PhotoElectricChefs
Blinking L LED (No Blink example) [solved] - Programming Questions - Arduino Forum
3- Blinking an LED with Arduino Arduino for Beginners Tutorial
Arduino Addiction: Blinking LED with Arduino Nano
Introduction to Arduino: Getting Connected and Blinking LEDs - Maker Challenge - TeachEngineering
5 different ways to Blink an LED using Arduino (+ Bonus)