IEEE Project 2010UW-Madison

Student Chapter

USB-Powered LED Color Organ

Meeting 1

Agenda

Introductions Meeting Schedule Design Introduction/Overview Eagle Tutorial Assignment

Meeting Schedule

February 15, 18 Introduction, Eagle Tutorial Assignment

March 1, 4 Layout Review, Eagle Q&A, Start Layout

Individual Meetings (Weeks of March 15, 22) Board Layout Review, Make PCB Order

Week of April Soldering Practice, Board Assembly

April 28 (6:00pm), 31 (3:30pm) Board Assembly, Test, and Debug

Design Introduction

The color organ operates from USB power. You can choose which USB connector to have on

your board (A, B, or mini-B) Eight RGB LEDs are controlled by a

microcontroller A 3.5mm stereo jack provides the audio input

connection An optional USB UART allows the host

computer to communicate with the microprocessor

Design Overview

Initial Eagle Schematic

Initial Eagle Layout

Eagle Assignment You’re welcome to work by yourself or with

someone else – it’s your call Before the next meeting

Download Eagle 5.7 from Cadsoft http://www.cadsoft.de/download.htm

Complete the SparkFun tutorials http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=108 http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=109

Also learn about and experiment with Create and name polygons Turn thermals on and off

Don’t worry about footprints.

Until we meet again…

EAGLE installs PDF manuals and a confusing tutorial in the doc subdirectory

Any questions?

Look for materials at http://eceserv0.ece.wisc.edu/~morrow/IEEE

USB Connectors

USB UART

Switches

Microcontroller

Audio Input

LED Array and Drivers