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Features

Reading and Writing an EEPROM Using the Arduino
When faced with a dilemma of unavailable programmed replacement chips and the prohibitively expensive cost of a commercial programmer, the Arduino platform came to the rescue.

Experiments with Alternative Energy, by John Gavlik
Learn the fundamentals of renewable energy through this educational series. This month: Fuel Cell Basics.

Projects

Build This Indoor Shooting Range
Electronic Gadgets, by Ron Newton
Now you can do target practice in the privacy of your home using photon bullets with your own gun.

Build a Jumbo LED Digital Thermometer
Digital Electronics, by David Williams
Although the original usage for this device was for a fish tank, home beer brewers, hydroponic gardeners, amateur weather watchers, or folks interested in energy management will appreciate the easy-to-read temperatures.

Columns

Techknowledgey, by Jeff Eckert
Techknowledgey 2010
Topics covered include Maxwell’s demon is discovered, affordable night vision, new ’scopes are introduced, butterflies are not free, plus some other stuff you’ll find interesting.

The Spin Zone, by Jon Williams
Spinning Up Fun With Encoders
While we’re on the topic of expanding inputs with just a few I/O pins, I’m also going to show you how to apply an old trick to this new processor.

Q&A, by Russell Kincaid
Christmas tree lights, clock oscillator schematic, noisy audio, plus more.

Fundamentals For Beginners
Potentiometers
These experiments were provided by GSSTechEd.

The Design Cycle, by Fred Eady
Shuffling The TCP/IP Stack
This month, in addition to shuffling bits in the Microchip TCP/IP stack, we’re going to perform some soldering iron surgery.

Fundamentals For Beginners
Photocells
These experiments were provided by GSSTechEd.

Smiley’s Workshop, by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 22)
Busy as a BeAVR

Departments

Developing Perspectives, by Bryan Bergeron
Please visit our Developing Perspectives blog to read the full article and comment.