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April 2010

Nuts and Volts Magazine

Keep’n Score With The VEX - 2 Digit Scoreboard

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Features

Become a Wiz with Wireless Ethernet Devices

This month, we are going to design and construct the first device of the next generation of embedded wireless Ethernet devices. While we’re at it, we’ll also lay the groundwork for incorporating Microchip’s 16-bit line of microcontrollers into future Design Cycle projects.



Projects

Build the VEX Two-Digit Scoreboard

Follow the construction of this unique scoreboard that you can add to any of your own projects.


Using a 128x64 Graphics Display with Your 16-Bit Micro Experimenter

In the Feb ’10 issue, we introduced you to the new Experimenter Module. This time, we’ll show you how to add an LCD display that allows you to have graphics and text at the same time.


Experiments with Alternative Energy

Learn the fundamentals of renewable energy through this educational series. This month: Experimenting with the WindPitch Wind Turbine.


Program Small Devices With Big Abilities

Learn how to use the .NET Micro Framework in your projects.



Columns

TechKnowledgey
by Jeff Eckert
TechKnowledgey 2010
Topics covered include the fastest graphene transistor, turning your HDTV into a videophone, a flytrap that eats cesium, plus some other stuff you’ll find interesting.

PICAXE Primer
by Ron Hackett
Programming the MAX7219 LED Display Driver
This month, we’ll experiment with three different programs for our display and one for our 28X1 master processor. First, we’ll try out a simple program to count from 0 to 9999, and then we’ll throw in a little “zero-blanking” for good measure.

Q&A
by Russell Kincaid
Q & A
A cheap strobe, thermometer repair, re-using old transformers, solar light, plus more.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 21: Breadboarduino
Let's bust up the Arduino and reconstruct our own version from the pieces. Part 21

Open Communication
by Louis E. Frenzel
Shortwave Listening: What it is, how to do it, and what to buy.
Once the vacuum tube came along, radio really took off and stations sprung up around the world. Even with a simple radio, you could hear local and far away stations.Today, there are still many of us who like to do this. The activity is shortwave listening (SWL) and it is both fun and a challenge.

Departments

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