Circuit Cellar Online -This Month

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.

	A $25 WEB SERVER
		by Steve Freyder, David Helland, and Bruce Lightner “See the world’s smallest web server.” There are no age or height restrictions, but we're talking real excitement. Step right up and see how these guys put together a stand-alone web server that includes an Ethernet controller, real-time networking kernel, TCP/IP stack, and a PCB smaller than a business card. 7-99
	TESTING 1, 2—Part 1: Enduring Challenges
		by George Novacek According to George, product testing should be more like a torture chamber than a sound check. In this series, he explains how the value of extreme test routines is more important than the cost of those routines. Before this set is over, you will understand why not running electrostatic discharge, electromagnetic immunity, or power and operational shock tests can leave you singing the blues over smoldering electronics. 7-99
	THE ART AND SCIENCE of RS-485
		by Bob Perrin RS-485 has been around for a while and has quite a range of applications, but that doesn’t stop some people from doing it wrong. If you’re not too fond of homework, pay attention because Bob is going to share his notes on the RS-485 standard and explain what it takes to successfully implement an RS-485 network. 7-99
	ELECTROMAGNETIC RADIATION AND SEVERE WEATHER
		by Richard W. Fergus Unfortunately, not all severe storms turn out to be just a bad dream. So, if you’re running toward the root cellar, you might want to bring Richard’s electromagnetic radiation sensor so that you can directly monitor the severity and distance of approaching storms. 7-99
	LOGGING IN THE '90s—Part 1: Data Acquisition System
		by George Martin Rest easy all you spotted owl fans, George isn’t headed for the old growth forests; he’s headed toward the new market for data-acquisition systems. As desktop spreadsheet and data-graphing applications become more user friendly, the market for custom data-logging systems is becoming tighter. Join George as he takes a data-acquisition module, Visual Basic, and whittles down some code to form a general-purpose data logger. 7-99
	PEDIGREE PROTECTION—Watchdog Applications
		by Bob Perrin A motion-triggered recording of vicious canines may keep the average cat burglar off of your property, but it takes more than just the presence of a watchdog circuit to keep embedded-system failures at bay. Sit, stay, and listen while Bob explains how effective watchdog timers are implemented in hardware and software. 7-99
	SOMETHING HAPPENED ON THE WAY TO THE FORUM
		by Tom Cantrell Buckle up as Tom takes a ride down the microprocessor highway and visits the Embedded Microprocessor Forum. Come to a complete stop and listen as he discusses the latest in embedded microprocessors and even gives some insight as to what kinds of products will be crossing our paths down the road. 7-99
	WHAT'S YOUR ENGINEERING QUOTIENT?
		Test Your EQ presents some basic engineering problems for you to test your engineering quotient. • Step up to the plate. —Questions 1 & 2 • Take a swing! —Questions 3 & 4 • What's the count? —Questions 5 & 6 • Homerun? —Questions 7 & 8
	RESOURCE LINKS
		*Each month Circuit Cellar's Resource Links provides helpful links and information on a variety of featured topics.* Hall Effect / Magnetoresistive (MR) Sensors by Bob Paddock The 8051 Microcontroller by Benjamin Day
	NEW PRODUCT NEWS—edited by Harv Weiner
		PC/104 CPU Module Multiprocessor DSP board DSP Coprocessor Board PC-Based Digital Storage Scope Multi-input SVGA Module Fuzzy-Logic Robot New Product submissions may be sent to Harv Weiner. 4 Park St. Vernon, CT 06066.
	PRIORITY INTERRUPT
		Circuit Cellar Online by Steve Ciarcia Read Steve Ciarcia's latest editorial exclusively presented by AVNET.
	CIRCUIT CELLAR's Print Magazine
		Take advantage of more than 11 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!