Circuit Cellar Ink 42
January 1994

Table of Contents

2 Ken Davidson	Editor's INK Catch the Bug
6	Reader's INK Letters to the Editor
8 Harv Weiner	New Product News
14 Christopher Yasko	Put a CEBus Power Line Interface in Your Next Design You've been reading about CEBus for years now, and it's never been much more than words on paper. Warm up your soldering iron and get out your software tools; it's time to put your hands on some hardware.
24 Anthony Segredo	Home Temperature Control Basics For some, warming up the living room means warming the whole first floor of the house. For the energy conscious, temperature control is heating just the rooms that need it. Read on for the fundamentals.
28 Rick Zarr	Add a Serial X-10 Interface to Your PC If you've ever looked at most "serial port X-10" interfaces out there, you know how software intensive they are. Add one smart single-chip micro, and you'll have plenty of time left for your application. Download: SERX10.ZIP
38 David Prutchi	Designing Printed Circuit Boards for High-speed Logic With the ever increasing use of high-speed buses, gone are the days of treating logic signals as discrete ones and zeros. Find out just some of the issues involved in laying out a PC board for such high-speed systems.
44 Ed Nisley	Firmware Furnace Lots'a Dots: Big Bit-mapped LCD Panels for the '386SX Project Everything you've ever wanted to know about LCD panels but were afraid to ask is the subject of this month's and upcoming Firmware Furnace articles. Ed sheds some light on the topic before adding it to his development board.
56 Jeff Bachiochi	From the Bench Temperature Sensor Eludes Analog Interfacing Are you in need of a thermostat that is analog-free? Follow Jeff's lead as he introduces you to Dallas's DS1620 Thermometer and Thermostat. The name of the game is solid state with the help of an EEPROM.
60 Tom Cantrell	Silicon Update PID-Pong Challenge Ever been impressed by the local department store's display of the beachball twirling in the air above a fan? Not one to be outdone, Tom goes a step further with his own high-tech display.
66 John Dybowski	Embedded Techniques Embedded Timers Unlike humans, computers don't have to deal with annoying alarm clocks just to tell them it's time to get up for work. Instead, it's a matter of what RTC you choose for it. John's choice of Signetics' PCF8583 will let your computer sleep easier. Download: ET42.ZIP
76 Russ Reiss	Patent Talk
81	Advertiser's Index
82 Ken Davidson	ConnecTime -- Excerpts from the Circuit Cellar BBS
96 Steve Ciarcia	Steve's Own INK Interactive Harmony -- An Installer's Market

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