Circuit Cellar Issue 207 October 2007-PDF

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Issue #207
October 2007
Theme: Signal Processing


TASK MANAGER—Mark Your Calendars, by C. J. Abate, p. 4
NEW PRODUCT NEWS—edited by John Gorsky, p. 8
CROSSWORD—p. 93
Signal Recovery: Restore the Attenuated Portion of an AC-Coupled Signal, by Brian Felder, p. 10
Wireless Thermostat System, by Darryl Uchitil, p. 18
The Monarch Butterfly: Build a Barometric Altimeter, by Thomas Black, p. 26
Resilience in Embedded Designs (Part 2): RS-485, Voltage Supervisors, Watchdogs, & Outputs, by Aubrey Kagan, p. 35
Simple Ethernet, by Ken Merk, p. 40
Embedded Speech: Speech Synthesis for Small Applications, by Nicusor Birsan & Ionut Tarsa
ABOVE THE GROUND PLANE—Hearing Clearly: Hardware, by Ed Nisley, p. 55
FROM THE BENCH—RoboGrowth, by Jeff Bachiochi, p. 60
THE DARKER SIDE—No Fear with FIR; Put a FIR Filter to Work, by Robert Lacoste, p. 70
SILICON UPDATE—I Sense, Therefore I Am, by Tom Cantrell, p. 80
PRIORITY INTERRUPT—The Law of Unintended Consequences, By Steve Ciarcia, p. 96