July 2004 Issue

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PROJECTS
SELF-POWERED VOLTMETER
An opamp trick to add on to your vehicle.
by Fernando Garcia
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THE ENIGMA MACHINE
Part 2: Enigmatic experiments with this high voltage apparatus.
by Gerard Fonte

CAPACITANCE METER
With this project, you’ll never have to wonder how much wire is on a coil again.
by Ron Duffy
FEATURES
MICROCONTROLLERS ARE GREAT, BUT ...
Don’t forget these analog alternatives to save your microcontroller pins.
by Dustin Christopherson
SELECTING A LOGIC ANALYZER
How to choose the best logic analyzer for your needs — from cost to model.
by Duane Mattern
A PROFILE OF ROY NORMAN
Inside a life where electronics is much more than a hobby.
by Ed Driscoll
TETSUJIN 2004
The cutting edge event sponsored by our sister publication, SERVO Magazine.
SERVO Magazine.

COLUMNS
MICRO MEMORIES
The Rockman revolution.
JUST FOR STARTERS
Starting a new design, Part 2: State machines and microcontrollers.
LET’S GET TECHNICAL
Error detection and correction.
NEAR SPACE
Build a light sensor for your data logger.
STAMP APPLICATIONS
GUI on a beam of IR.
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IN THE TRENCHES
For design engineers facing real world problems. This month: PCB layouts.

TECHKNOWLEDGEY 2004
Robotic surgery; mobile processors; long distance microphones; and more.
PERSONAL ROBOTICS
Building stuff.

Q & A
A dB and pinout chart; inside voltage and current regulators; and more.
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