Circuit Cellar Issue 223 February 2009-PDF

Issue #223
February 2009
Theme: Wireless Communications

TASK MANAGER—PV Technology, Microstrips, and More, by C. J. Abate
PRIORITY INTERRUPT—Are We Dumb Enough Yet?, by Steve Ciarcia
NEW PRODUCT NEWS, edited by John Gorsky
CROSSWORD
Wireless Module Control: An MCU-Based Irrigation Control System, by Tom Kibalo, p. 14
Processor Modification: Put Soft-Core Processors to Work, by Larry Standage, p. 30
Power Switching in the Real World (Part 2): Practical Switching Arrangements, by Steve Hendrix, p. 43
ABOVE THE GROUND PLANE - INTELLIGENT ENERGY SOLUTIONS—Solar Measurements: Techniques for Evaluating Panels, by Ed Nisley, p. 24
SILICON UPDATE—Here Come the Wadgets, by Tom Cantrell, p. 50
FROM THE BENCH—Access SD Memory Cards (Part 2): Use the FAT File Format to Move Data, by Jeff Bachiochi, p. 57
THE DARKER SIDE—Microstrip Techniques, by Robert Lacoste, p. 64