Circuit Cellar Ink 147
October 2002

Table of Contents


Jennifer Huber

HTML Task Manager

Be a Contender


John Gorsky

New Product News

  • ADT7xxx temperature-to-digital converters from Analog Devices, Inc.
  • TSHARC Octopus touch screen controller from Hampshire Company, Inc.
  • PCA954x same-address I2C switch from Philips Semiconductors
  • LTC4412 low-loss PowerPath MOSFET controller from Linear Technology Corp.


David Tweed

HTML Test Your EQ


Martin Courtney

2-D or Not 2-D?

If you're at that point where 2-D surface images just aren't doing the job anymore, then it's time for you to move on to more sophisticated 3-D surfaces. In this article, Martin walks us step-by-step through a project to create 3-D surfaces that can be oriented in real time.



Richard Hosking

High-Frequency Job

Frequency Counter and VFO Controller

If you're looking for a way to stabilize a free-running local oscillator and obtain a frequency readout in one fell swoop, then Richard has the solution for you. How about a board that's comprised of an AT90S1200, a gate/prescaler circuit, and a loop filter/VCO control circuit?



Jens Altenburg


A Solar-Powered MSP430 Robot

Worried about the side effects of that presumably noxious gas that's lingering in your basement? Rather than trying to waft samples into an empty jar for your local health department to assay, try following Jens' lead by building your own gas-detecting robot.



Philip Ching
Bruce Land

Light the Way

An LED-Based Alternative

Actors get paid big bucks to feign abstractions such as happiness. But when it comes to imitating the physical world, Hollywood looks to engineers. Philip and Bruce describe how they faked a flame and illuminated an audience with a real-time LED-based candle.



David Prutchi
Michael Norris

Convert Your PC Sound Card

Make a DC-Coupled Arbitrary Waveform Generator

Many consumer-grade sound cards are insufficient for inducing signals that have low-frequency or DC components. However, with the right software, a PLL circuit, and a little know-how, you can convert your PC sound card into a precision DC-coupled arbitrary waveform generator.


Roberto Ferrabone

Choosing Your LCD

Choosing the right LCD and controller can be difficult, especially when their signal names don't match up. But, as Roberto explains, it doesn't have to be a major problem. In this article, he will show you how to pick the appropriate devices for your own applications.



Ed Nisley

Above the Ground Plane

Audio Transformation

If you've ever had a problem connecting your PCs to a sound system, and chances are you have, then listen up. In this article, Ed shows us how he took the mystery out of audio transformation by building an isolated mixer for PC sound card audio. So, get ready to connect.


Embedded PC


Fred Eady

HTML Applied PCs

Design with STKxxx Parts, Build an Ethernet Controller

Fred first introduced us to the STK500 starter kit. Now he's back with the newest tool in his Atmel toolbox, the STK501. In this project, he combines the STK501 daughterboard with the STK500 and ASIX Ax88796 to build a 10/100-Mbps Ethernet controller.



Jeff Bachiochi

HTML From the Bench

12, 16, 18, Hike! Dashing for Flash Cash

Whether you're gearing up to participate in the Microchip 2002 design contest or getting ready to follow the action from your favorite recliner, now is the perfect time to tune in for Jeff's pregame analysis.


Tom Cantrell

HTML Silicon Update

Watch Me Pull A Rabbit Out of My Hat

It's clear that the Rabbit 3000 is an improved 8-bit micro. But how "new" is it? In this article, Tom takes a look at the micro's history, focusing on the evolutionary track leading up to its current features.


Advertiser's Index / November Preview


Steve Ciarcia

HTML, HTML Priority Interrupt

Linguini with Clam Sauce

FTP Directory for INK 147
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