Circuit Cellar Online -Sept 2001

THE MAGAZINE FOR COMPUTER APPLICATIONS Circuit Cellar Online offers articles illustrating creative solutions and unique applications through complete projects, practical tutorials, and useful design techniques.

	S.O.S...SHOWING OFF THE SEQUENCER
		Contemporary Design Execution by Robert P. Bisey By combining old with new, Robert shows us how to build and use a user-programmable single board microcontroller system to generate automatic Morse code messages for use in Repeater Stations, Field Day Contests, and everyday Ham Radio CW activities. September 2001
	DON'T GET CAUGHT IN THE DARK
		Building a Darkroom Timer by Noel Rios Timing is critical, and when Noel's photographer brother asked him to build him a timer for his darkroom, he wasted none and got right down to business. He even found a few other uses for the timer, which he shares with us. September 2001
	FINE-TUNING AN EMBEDDED IDEA
		Part 3: Armed and Ready by Fred Eady As a result of torrential rain on his vacation, Fred got the "opportunity" to check out a TV documentary on Colt weapons. This triggered an idea for the final installment of articles on Rabbit Semiconductor and Z-World computing modules. This article is loaded with information, so sit back and imagine a beach bungalow on the Gulf shore.... September 2001
	ANALOG BASICS
		Transistor Signal Amplification by James Antonakos Taking a break from ones and zeros, this month, James reviews the electronics world from the analog side. With his detailed look into the components of a common emitter transistor amplifier, we see how this circuit can truly be beneficial. September 2001
	SPECIAL FEATURE • TAKE MY COMPUTER, PLEASE!
		Part 6: COMPUTERIZED WITCH DOCTOR by Steve Ciarcia Way back at the dawn of the microcomputer age, Steve Ciarcia was blazing a trail (sometimes literally) through the hardware and software issues of the era. At the request of many of our readers, we've brought back a series of articles, written by Steve, chronicling the design adventures of those early days in the Circuit Cellar. This month, it's chapter one from Take My Computer, Please! September 2001
	NEVER MISS AN OPPORTUNITY
		Getting the Most Out of Your New Product Ideas by George Martin Not every opportunity is golden, and unfortunately, neither is every idea. However, George shows us that, by following a few simple steps, we can weed out the bad from the good, and therefore, know which ones to run with and which to leave behind. September 2001
	XLR8R PART DEUX
		Silicon Update Online by Tom Cantrell Tom takes us back in time to revisit a concept that�ll have us thinking about the future�micro-machined accelerometers. Although these structures aren�t yet doing what you might see in a sci-fi movie, they are appearing regularly on the toy and car-manufacturing scene. September 2001
	ASK US
		Got Questions? Want Answers? ASK US Browse Q&As from other engineers or submit your tough technical questions to the ASK US team and let us help keep your project on track or simplify your design decision.
	WHAT'S YOUR ENGINEERING QUOTIENT?
		Test Your EQ presents some basic engineering problems for you to test your engineering quotient. Problem 1—What is the current through the resistance Ro in the following circuit? What is this circuit known as? Problem 2—Determine the required order of a lowpass Butterworth filter that has a -3dB frequency of 500Hz and an attenuation of 40dB at 1000Hz. The rest of this month's questions
	RESOURCE LINKS
		Each month Circuit Cellar's Resource Links provide helpful links and information on a variety of featured topics. The Infrared Remote by Rick Prescott Graphic Cards by Brant Schroeder Iomega Peerless by Brant Schroeder
	NEW PRODUCT NEWS—edited by Rick Prescott
		Optical Transceivers FireWire for VME Computers GPS & Multi-Band Radio Antenna Rugged Flash Disk Drive Narrow Band FM Radio Modules New Product submissions may be sent to Rick Prescott 4 Park St. Vernon, CT 06066
	PRIORITY INTERRUPT
		After You've Thoroughly Infuriated Me... by Steve Ciarcia Read Steve Ciarcia's latest editorial exclusively presented by AVNET. September 2001
	CIRCUIT CELLAR's Print Magazine
		Take advantage of more than 12 years of engineering editorial experience with Circuit Cellar's print magazine! Full of unique, application-oriented articles. Come see what's in this month's publication! September 2001
	COPYRIGHT
		CIRCUIT CELLAR� Online, (ISSN 1527-8131) and Circuit Cellar are published monthly by Circuit Cellar Incorporated, 4 Park Street, Suite 20, Vernon, CT 06066 (860) 875-2751. Entire contents copyright � 2001 by Circuit Cellar Incorporated and eChips, Inc. All rights reserved. Circuit Cellar and Circuit Cellar INK are the registered trademarks of Circuit Cellar Inc. Reproduction of this publication in whole or in part without written consent from Circuit Cellar Inc. is prohibited. Disclaimer