This
issue is jam-packed with innovative ideas, practical lessons,
and sound solutions for robotics applications. If you’re
currently working your way around a design obstacle or
looking for inspiration to start that next great project,
you just may find the solution in these articles.
In
“Robot Localization and Control,” Brown University colleagues
Ethan Leland, Kipp Bradford, and Odest Chadwicke Jenkins
demonstrate how to create an effective localization system
for accurate control of a mobile robotic network (p. 36).
Using a Freescale MC13192 evaluation board, this group
built a sophisticated ZigBee-based system to control a
WowWee Robosapien humanoid robot. They succeeded in creating
a system that determines the robot’s position with great
precision. It’s not surprising that this project won Honorable
Mention in the 2005 Freescale Wireless Design Challenge.
This
month, we also have an incredible animatronics system
designed by a Hollywood visual effects creator. Peter
Montgomery, who has designed stepper-motor-based systems
for Disney Studios, created an elaborate display for Halloween
(p. 16). Peter’s programmable Freescale 68HC11 microcontroller-based
servo animation controller is the backbone of his prop
system, which includes a talking skull and an animated
raven. Building a similar project looks like a fun challenge.
If you start now, you’ll have seven months to complete
your own unique high-tech Halloween display to impress
your neighbors.
If
you’re looking for an autonomous outdoor robot that can
handle rugged terrain, you won’t be disappointed with
Beavis, which was designed by a group of Texas Tech University
colleagues (p. 24). Paul Beckling, Ray Pettit, Todd Quasny,
and Robert Watson worked together in the Abilene AI and
Robotics Lab to convert a Fisher-Price motorized Power
Wheels Jeep into a sturdy and efficient robot. In their
article, they explain how they designed Beavis by adding
a Rabbit 3000 microcontroller, various sensors, a motor
controller, and a servo.
For
more on servo control, read Michael Dvorsky’s article
about his budget-friendly serial servo controller (p.
80). Using a Lynxmotion SSC-32 servo controller and an
Atmel ATmega8 microcontroller, Michael built a system
that enables him to generate stable servo pulses for up
to 32 servo channels. It’s perfect for walking robots.
In this article, Michael discusses the design process
from beginning to end, giving you a complete picture of
what it takes to develop a similar application for your
own needs.
Those
of you who share columnist Jeff Bachiochi’s love of the
sciences and mathematics and enthusiasm for sharing that
enjoyment will not want to miss his project based on the
programmable Scribbler Robot by Parallax (p. 30). Jeff
provides a thorough analysis of the Scribbler Robot and
walks you through some fun, inexpensive experiments you
can do with children to introduce them to robotics.
This
issue features a lot of fresh ideas that can be applied
in a variety of robotics applications. Get ready to start
building!

jennifer.huber@circuitcellar.com