Circuit Cellar Issue 264 July 2012-PDF

Issue #264
July 2012
Theme: Internet & Connectivity
TASK MANAGER—Plan, Construct, and Secure, by C. J. Abate, p. 2
NEW PRODUCT NEWS, p. 10
TEST YOUR EQ, p. 17
CROSSWORD, p. 76
Internet‐Enabled Home Control: Build a Cloud‐Based Attic Monitor, by John Breitenbach, p. 18
USB on a Shoestring, by Tom Struzik, p. 28
Build an MCU‐Based Digital Thermometer, by Tommy Tyler, p. 36
EMBEDDED SECURITY—Electronic Signatures for Firmware Updates, by Patrick Schaumont, p. 44
EMBEDDED UNVEILED—EtherCAT Orchestra, by Richard Wotiz, p. 52
THE CONSUMMATE ENGINEER—Project Development (Part 1): Plans, Schedules, and Task Management, by George
Novacek, p. 58
LESSONS FROM THE TRENCHES—Switch Debouncing: Interfacing to a Simple Serial Device, by George Martin, p. 62
FROM THE BENCH—Wireless Data Delivery, by Jeff Bachiochi, p. 68
PRIORITY INTERRUPT—Fix It or Toss It?, by Steve Ciarcia, p. 80