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T & L Publications, Inc > Back Issues > 2012 > NV February 2012

NV February 2012

Features

The Edison Cell
by Walter Noon
Rediscover the secrets of a 100 year old “green” battery whose time may finally have come. Page 38

Creating a Virtual Serial Port With the 32-Bit Micro Experimenter
by Thomas Kibalo
Need a serial port but don’t have one on your computer? No problem! We’ll show you how to use your Experimenter to provide virtual serial communications. Page 44

Projects

Channel Surfing With An Arduino
Arduino
by William Baird
The Arduino is perfectly suited to emulate the IR remote controls associated with many modern appliances. If your TV recorder and tuner are different devices, this will allow you to change channels between scheduled recordings on whatever schedule suits you. Page 32

Columns

Q&A
by Russell Kincaid
Q & A
Help with a random number generator, battery tester, LED dimmer, and a nonsense circuit are just some of the topics covered in this month’s column. Page 0

Techknowledgey
by Jeff Eckert
TechKnowledgey 2012
Read about a battery that offers a 25 year operating life, Clouds with ears, and seeing sound, to name a few. Plus, Pong turns 40. Page 10

PICAXE Primer
by Ron Hackett
PICAXE Primer
Constructing a two-digit seven segment LED project board. Page 14

The Design Cycle
by Fred Eady
The Design Cycle
CLC Culture. Page 52

Smiley’s Workshop
by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 43)
Breadboard LCD Navigator Part 2: The Navigator Buttons. Page 59

Open Communication
by Louis E. Frenzel
Open Communication
Comm Kits — A radio kit is a great way to get familiar with electronics and communications. Page 68

Fundamentals For Beginners
Build a Moisture Detector
If you’d like to test plant soil for moisture, you can use this circuit to do so. The more moisture there is, the faster the LED will blink. Page 76

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