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Build The Big Ear
A Touch of Spice Part 1
by Peter Stonard
There’s more than one way to create an electronic circuit and make it work. One powerful tool in particular is simulation previously onlyavailable to professionals). With simulation, you can accurately predict the circuit’s performance even before turning on your soldering iron! Page 50
How To: Breadboarding
by Fred Eady
I’m old enough to have experienced black and white television, the introduction of color television, the very first post-WWII gasoline “shortage” and rotary “Princess” telephones. I also remember when AM radio was king and only uppity college kids listened to FM... Page 62
The Big Ear
Electronic Gadgets,
by Jim Stewart
Ever wish you could build an “audio telescope” that would let you hear things that were faint or far away? Well, this article shows you how to build such a thing. We call it the Big Ear. Page 34
Build A Dog Detector
Home Automation,
by Michael Simpson
We have several pets in our home, including two dogs. One of the problems we have is the dogs like to sneak into the kitchen and eat the cat’s food. My wife asked me if there was any way we could create some sort of detector that would chirp each time a dog entered the kitchen. Of course, I said yes... Page 40
Two Add-On Gauges For The Automotive Enthusiast
Automotive,
by Robert M. Voss
This article describes two add-on automotive devices. One of these is not found in production cars (to the best of my knowledge), but will be of interest to anyone who seriously wants to know what goes on under the hood. The second device seems to be standard equipment on more and more cars, and — in my home state of New York, at least — insurance companies will give a discount for its use. Both of these circuits can easily and safely be installed in any car... Page 46
Techknowledgey
by Jeff Eckert
Antenna Achieves Near-Perfect Performance
Events, Advances, and News Page 12
The Design Cycle
by Fred Eady
Avoiding Tuition At USB University
I have a love/hate relationship with USB. I love it because it is convenient and user friendly. I hate it because understanding the underlying processes of USB can be difficult. Think about this. You don’t have to know the down and dirty details of how a PIC ALU (Arithmetic Logic Unit) works to employ a PIC in a microcontroller-based application. So, why should we have to know so much about USB to put it to work for us? Page 16
Q&A
by Russell Kincaid
Q&A
In this column, I answer questions about all aspects of electronics, including computer hardware, software, circuits, electronic theory, troubleshooting, and anything else of interest to the hobbyist. Page 24
Smiley’s Workshop
by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 5)
This month, we are going to learn what the heck that button in Figure 1 means. AND, the first binary 1000000 folks who ask will get the button for free. See www.smileymicros.com for details. If this doesn’t make sense to you now, it will in a minute (or two). Page 57
Personal Robotics
by Vern Graner
The Probotix Fireball V90 CNC Router
In this month’s issue, we construct the PROBOTIX FireBall V90 CNC router from a kit and then put it through its paces. Page 69
PICAXE Primer
by Ron Hackett
Experimenting With The IR Multi-Board
This month, we’re going to continue our exploration of PICAXE IR capabilities, which we have divided into three basic categories... Page 76
Open Communication
by Louis E. Frenzel
Six Things You Should Know About Wireless
Wireless started changing the world just after it was invented by guys like Marconi, Tesla, and others in the late 19th and early 20th centuries. And that change is still going on. Here are a few wireless developments maybe you didn’t know about. Page 82
Developing Perspectives
by Bryan Bergeron
Please visit our Developing Perspectives blog to read the full article and comment. Page 8
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