Circuit Cellar Ink 177
April 2005

Table of Contents


Jennifer Huber

HTML Task Manager

My Favorite Subject


John Gorsky

New Product News

  • surface-mount TCND5000 IR reflective sensor from Vishay Intertechnology, Inc.
  • PIC18Fxxxx microcontrollers from Microchip Technology, Inc.


David Tweed

HTML Test Your EQ

2004 AVR Design Contest


John Orlando


A Low-Cost Embedded Vision System

The AVRcam is a low-cost image-processing engine. The system shows great promise for robotics applications, as well as motion detection and object recognition.



Bruce M. Pride

Simple USB Data Acquisition

Simple data acquisition is only a project away. Bruce shows you how to build a simple data acquisition device around an LPC2138. The system features a simple GUI that allows you to view graphed data instead of the streaming serial data in a terminal emulator session.



Peter Gibbs

Automatic Gate Control

Peter's automatic gate control simulation project involves everything from wireless communication to motor control. Read on to learn how to build the controllers and place the sensors.



Joe Grand

Embedded Security Design

Part 2: Circuit Board

In the first part of this series, Joe described superficial design solutions that will help protect your embedded products. This month he sheds light on security issues related to the circuit board. He's got your entire design covered.

Above the Ground Plane


Ed Nisley

Foolish LED Tricks

Ed recently bought a cheap LED flashlight that barely worked. Rather than ask for a refund, he rebuilt the flashlight and learned a lot about LED technology in the process.


2004 AVR Design Contest


Eric Gagnon

Digital RC Servo Controller

Part 1: 32-Channel Design

The days of linking serial servo controllers to support a high number of channels are over. In the first part of this series, Eric explores RC serial servo controller theory. Plan on using a 32-channel controller in your next robotics project.


From the Bench


Jeff Bachiochi

Stay in Touch

Sensor Material for Robotics Applications

Peratech's quantum tunneling composite (QTC) technology is going to change the way you approach your robotics projects. Read on to learn how Jeff softened the grip of a Heathkit Hero robot with a QTC sensor.


Applied PCs


Fred Eady

Test-Driving the Micro64

Planning an AVR-based industrial control or data logging application? Check out the Micro64, which is a modular AVR-based controller housed in a 42-pin, 1.5-cubic-inch potted brick.


Michael R. Smith
Moreno Bariffi
Warren Flaman
Adam Geras
Lily Huang
Andrew Kwan
Alan Martin
James Miller

Practical Application for TDD

Part 2: Automated Test-Driven Environment

Last month you learned about the numerous advantages to test-driven development (TDD), which is a primary component of an agile development technique. Now you'll find out how to build a prototype TDD environment for an embedded system.


Viraj Bhanage
Prajakta Deshpande
Praveen P. Deshpande

Three-Axis Stepper Motor Driver

Part 1: Design Basics

Technicians in high-tech laser laboratories use optical components such as lenses, mirrors, and filters to direct laser output. A multiple-axis stepper motor controller gives technicians greater control over the components. Special firmware enables remote control from a PC.


Silicon Update


Tom Cantrell

USB Easy Riders

Tom takes a closer look at USB technology and the process of upgrading applications with USB connectivity. Chips like the CP2102 make the procedure a whole lot easier.


Advertiser's Index / May Preview


Steve Ciarcia

HTML Priority Interrupt

Dead as a Doornail

FTP Directory for INK 177
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