Circuit Cellar Issue 140 March 2002-PDF

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ISSUE 140
March 2002
Theme: Embedded Applications


Task Manager—Fun, Games, and Inside information, by Rob Walker, 6.
New Product News, edited by John Gorsky, 8.
A PIC-Based Portable ID Reader for iButtons—by Michael Collier,Ph.D. , 12
High-Resolution Data Acquistion Made Easy—Brian Millier, 20
A Web Link Monitoring System —Tom Petruzzell, 28.
In-Circuit Emulator for the AT89Cx051 Family—by Praveen Deshpande & Prajakta Deshpande, 34.
Balancing D/A Conversion on One Pin— by Mariano Barrón & Javier Martinez, 52.
Applied PCs—Replacing Relays with Ladder Logic–Part 1: Getting Ready for the Climb— by Fred Eady, 60.
From the Bench—Spy-Size Event Logger, by Jeff Bachiochi, 68.
Silicon Update—SoC Hop, by Tom Cantrell, 78.
Priority Interrupt—Automobiles by Microsoft?, by Steve Ciarcia, 96.