Circuit Cellar Issue 275 June 2013-PDF

Issue #275
June 2013
Theme: Communications
EDITOR’S LETTER—Shape the Future, by Mary
Wilson, p. 6
NEW PRODUCTS, p. 10
MEMBER PROFILE, p. 15
CLIENT PROFILE, p. 16
TEST YOUR EQ, p. 17
DIY Surface-Mount Circuit Boards: Tips and Tricks for Building SMD Prototypes, by James Lyman, p. 22
Build a Signal Frequency Counter, by George Adamidis, p. 28
“Smart” Electronic Accessories: Design an RGB LED Pendant, by Chris Coulston, p. 34
THE CONSUMMATE ENGINEER—Testing and Testability (Part 2): PCB Testing, by George Novacek, p. 42
QUESTIONS & ANSWERS—Engineering a Way to Clean Solar Mirrors: An Interview with Scott Potter, by Mary Wilson, p. 46
THE DARKER SIDE—UML State Machines, by Robert Lacoste, p. 50
EMBEDDED IN THIN SLICES—Concurrency in Embedded Systems (Part 7): Software Signals Explained, by Bob Japenga, p. 58
FROM THE ARCHIVES—Network of Keypads, By Dhananjay Gadre, Anurag Chugh, Parag Shah, and Sneha Lele, p. 62
FROM THE BENCH—Real-Time Fuel Consumption Monitor: Data Collection and an On-Board Display, by Jeff Bachiochi, p. 70
CROSSWORD, p. 76
TECH THE FUTURE—The Growing Importance of Control Theory for DIYers, by Brian Douglas, p. 80