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June 2009

Nuts and Volts Magazine

Build Das BlinkinBoard. This all-purpose circuit will have you shouting “Wunderbar!”

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Features

You’ll Flip Over This Coin Toss Circuit

Exclusive Online Article: It’s Friday night and you’re hungry, so you decide to go pick up some food. Maybe a pizza, or maybe some kungpao chicken. You love them both, but you must choose one or the other. Do you flip a coin? Sure! But now, you can do it electronically! Let’s build a coin toss circuit!


How To: A Wire Wrapping Primer

Wire wrapping is a technique for constructing single or small numbers of simple to moderately complex electronic assemblies.



Projects

Build A Ballistic Chronograph

Wanna know how fast your projectile is going? Than you need to build this!


Ultra Low Power CMOS Water Sensor

Don't let water dripping from your ceiling be your first indication you've got a leak. You can build this handy device in just a couple hours.


Turning A Microwave Oven Into A Darkroom Timer

Find out what you can do with a dead microwave, a wooden box, a power cord, and a socket.



Columns

TechKnowledgey
by Jeff Eckert
TechKnowledgey 2009
Topics covered include cold fusion... it's back, new Minis arrive, PUMAs, chip sales bottoming, pluys other cool stuff.

The Design Cycle
by Fred Eady
Into the Guts of USB Drivers
When it comes to replacing a Legacy RS-232 Interface with USB, try a Microchip PIC18F14K50 USB Flash microcontroller.

Open Communication
by Louis E. Frenzel
Smart Phones Leading Cellular Growth
The cell phone has become a must-have item in our modern life. You pick it up when you grab your car keys and wallet or purse every day.

Q&A
by Russell Kincaid
Q&A
EV battery charger, 90 VDC power supply magic, getting an A+ in class D, plus more.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 11: Getting Started with the Arduino Projects Kit
Adding some hardware to the mix. Part 11

Personal Robotics
by Vern Graner
Das BlinkenBoard
The search for the "perfect" blinken board results in a versatile, scratch built, feature rich design, that you can build!

PICAXE Primer
by Ron Hackett
Taming Unruly LCD’s: Part 2
The 14M is the perfect processor for this project. It has more than enough I/O lines and program memory for the task at hand and it’s cheap enough that you can construct two or three complete “serialized” LCDs for the price of one commercial display.

Departments

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