Lesson 2 - External LED 'Blink' - Arduino a Quick Start Guide

This Arduino Quick Guide lesson uses the basic 'Blink' sketch, but uses an external LED with a current limiting resistor instead of the internal LED attached to pin 13.
The main aims of this lesson are:
Learn about the I/O (input/output) on the Arduino
Learn how to wire up a circuit
Learn about LEDs and Resistors

The instruction document for this lesson can be found here:

The application code for this lesson can be found in the 'Examples' area of the Arduino IDE under 'Basic', but can also be found here:

The circuit layout for this lesson can be found here:

If you don't have an Arduino or similar device, you can use the simulator on the above link.

Arduino Quick Guide | Arduino Quick Start | Arduino Getting Started | Arduino Beginner | Arduino Basics | Arduino First Steps | Arduino Guide | Learn Arduino | Arduino a Quick Start Guide

[hiteshchopra]

Hey....how do we know that how much current is required?