Circuit Cellar Ink 183
October 2005

Table of Contents

4 Jennifer Huber	HTML Task Manager Exemplary Designs
8 John Gorsky	New Product News DS4303 sample-and-infinite-hold voltage reference from Dallas Semiconductor Corp. LINEARSTEP linear-type stepper motor from Nippon Pulse America, Inc. MicroBolt LPC2106-based microcontroller module from Micromint, Inc. LTC6241 and LTC242 CMOS amplifiers from Linear Technology Corp. VR Stamp voice-recognition module from Sensory, Inc. ETX-P3T and ETX-P3Tx Celeron-based CPU modules from Kontron
12 Stuart Ball	Analog Bar Graph Display Stuart's LCDMeter is an affordable alternative to high-resolution analog displays. The key is to use a character-based LCD to display analog values. Read on to learn how it's done. Download: Ball-183.zip
18 Alberto Ricci Bitti	The Silicon Wallet CY8C27443-Based Data Manager Always forgetting passwords? Try Alberto's PSoC-based Silicon Wallet. The portable system enables you to keep track of all your old passwords and input new ones wirelessly. Download: Ricci_Bitti-183.zip
28 Shlomo Engelberg Yair Marom Roi Mauda	Digital Watermarking Digital watermarking is a method of marking files for the purposes of authentication and security. Shlomo, Yair, and Roi used their knowledge of digital watermarking to develop a system that enables police departments to check if audio file recordings have been tampered with. Download: Engelberg-183.zip
Above the Ground Plane 34 Ed Nisley	LED Optics Lights! Diodes! Current! Math! Do you ignore the LEDs in your circuits? Perhaps it's time you took them a little more seriously. In this column, Ed shines some light on LED technology. He covers everything from light patterns to the terms you'll find in LED datasheets.
38 Richard Hoptroff	HappyTerminal A ToothPIC-Based Terminal Emulator Richard's ToothPIC-based terminal emulator is an alternative to HyperTerminal. HappyTerminal is easier to set up than the RS-232 signal levels required by HyperTerminal. Download: Hoptroff-183.zip
44 Huifang Ni Jingxi Zhang Yang Zhang	Send and Receive VoIP Last July, Huifang, Jingxi, and Yang showed you how to build an eZ80F91-based VoIP system for transmitting phone calls over the Internet. In this article they cover voice data compression, packetization, transmission, and reception processes. Download: Zang-183.zip
52 Brian Millier	Maxed-Out PGA Brian shows you how he built his evaluation board and shares code routines that you can implement with an AVR microcontroller to configure an Analog Devices's AD8555. Download: Millier-183.zip
59 Bruce D. Lightner	AVR-Based Fuel Consumption Gauge With gas prices at record highs, wouldn't it be useful to be able to monitor your vehicle's fuel consumption rate in real time? Bruce's fuel consumption gauge is the answer. Download: Lightner-183.zip
Silicon Update 68 Tom Cantrell	Direction Finder Before dropping big bucks on a GPS module for a new design, consider the potential of Hitachi's inexpensive HM55B digital magnetometer chip. With a little steering from Tom, you can easily add direction-finding capability to virtually any design.
Applied PCs 72 Fred Eady	Transporting Sensor Data In-Depth Look at the CY3635 WirelessUSB Kit You can now transport sensor data using wireless USB. All you need is a CY3635 WirelessUSB kit and little guidance from Fred. Download: Eady-183.zip
From the Bench 78 Jeff Bachiochi	Understanding Semiconductors This month Jeff looks at the development of semiconductor electronics. He begins by discussing the essential building block of semiconductor technology: the PN junction.
93	Crossword Puzzle
94	Advertiser's Index / November Preview
96 Steve Ciarcia	HTML Priority Interrupt 11-lb. Bricks

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