Circuit Cellar Ink 157
August 2003

Table of Contents


Jennifer Huber

HTML Task Manager

Bulk Be Gone


John Gorsky

New Product News

  • FOX923E TCVCXO from Fox Electronics
  • MAX1472 ASK transmitter chip from Maxim Integrated Products
  • IR232 infrared-to-RS-232 converter from IndustroLogic
  • XE900M transceiver and XE924M access point from Xecom, Inc.
  • rfPIC12F675 and rfRXD0420/rfRXD0920 RF chips from Microchip Technology, Inc.
  • SBC1390 '386EX-based SBC from Micro/sys, Inc.


David Tweed

HTML Test Your EQ


John Dammeyer

Wireless CAN Yard Lamp Control

In addition to providing a sense of security from intruders, sensor-controlled yard lamps make it safer for you to walk on your property after dusk. But they can pose problems, particularly when a flash triggered by a nocturnal animal awakens you from a dream. Other systems like solar-powered lights have problems, too. Wouldn't it be nice to have more control over the technologies you use? Check out the CANRF module John built for yard lamp control.



Steven Pope

HTML Palm-Enabled Telescope

Why can't a Palm Pilot talk to a telescope? That's the question that prompted Steven to attempt adding an IR port to his telescope's control unit. His effort has proved rewarding. Not only can he control his telescope with his Palm, but he has also created the possibility for Internet access.



Daniel Ramirez

Build Your Own Four-Function Calculator

Mad Dash for Flash Cash Contest Entry

Daniel recently built his own electronic four-function calculator, citing little more than the spirit of invention as the impetus for his choice of design. In this article, he presents us with a thorough description of the project.



Ed Nisley

Above the Ground Plane

IR Sensing

Most professional engineers believe they have an adequate understanding of IR sensing concepts, but it never hurts to brush up on the basics. In this column, Ed expands on many of the topics he covered in a lecture last spring at the Tenth Annual Trinity College Fire-Fighting Robot Contest. Both seasoned designers and curious students will find Ed's straightforward commentary useful.


Craig Beiferman

Flexible USB-CAN Bridge

Mad Dash for Flash Cash First Prize Winner

When Craig decided that he needed a cost-effective, efficient way to control several microcontroller circuits from one computer, he used a PIC micro to design a USB-CAN distributed motion controller. Like many do-it-yourself endeavors, this project was born of necessity, so it's inherently inexpensive and easy to follow.



Roy Franz

The WiFi SniFi

Sniffing In and Out of Wireless Networks

Are you having trouble locating 802.11b wireless networks? Don't worry. Roy has the perfect solution. The WiFi SniFi is a compact, easy-to-build device that can "sniff" out wireless net-works and display the appropriate packet information.



Jeff Bachiochi

HTML From the Bench

Spotlight on the Renesas H8 Family, Hitachi and Mitsubishi Market MCUs for Embedded Systems

Whether you design medical, communications, or automotive components, you're sure to find numerous applications for Renesas Technology's H8 family of devices. So, before you begin your next project, you should familiarize yourself with the company's vast suite of H8 products. To do so, take a look at Jeff's comprehensive survey of the H8 family members and their specs.

Embedded PC


Fred Eady

HTML Applied PCs

Mission Possible: Achieve Cheap USB Connectivity

Exorbitant USB licensing fees and the high price of analysis tools have denied many of you access to the USB marketplace. A champion of the individual designer, Fred is on a mission to prove that it's possible to achieve personal USB connectivity without breaking the bank.



Tom Cantrell

Silicon Update

Switch Hitter

The MC33993 was designed with automotive applications in mind, but that doesn't mean that intelligent engineers in other fields won't find it useful. This month, Tom delivers an introduction to the chip's features in addition to discussing its applicability outside the auto industry.


Advertiser's Index / September Preview


Steve Ciarcia

HTML Priority Interrupt

Contest Zest

FTP Directory for INK 157
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