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

NV July 2012

Features

Build the Pi Scrolling Display
by Dan Gravatt
This versatile display lets you have your pi and see it, too! With 15 available digits, you can also use it to create your own desktop National Debt clock. (Of course, that may make you lose your appetite.) Page 36

Projects

Build the Solar Sequencer
Electronic Gadgets
by John Guyer
This article describes how to build a solar sequencer which enables a single solar panel to charge multiple batteries of different sizes and capacities, keeping them isolated from each other.This article also covers how to use a solar panel and battery to run a garage door opener in a building without access to utility power. Page 31

Streamline Your Home Studio With a Sound Card Switcher
Electronic Gadgets
by Thomas Henry
Get to the business of making music instead of messing with cords with this extremely useful and simple device. Makes a great beginner’s project too! Page 42

Upgrade Your 16-bit Micro Experimenter to 32-bit for 16x2 Processing Power
Electronic Gadgets
by Thomas Kibalo
With Microchip’s PIC32MX2/MX1 chip and the new MPLAB X IDE and free PIC32-bit C compiler, you can easily transition your 16-bit Experimenter to 32-bit processing. Page 46

Columns

Techknowledgey
by Jeff Eckert
Events, Advances, and News
Read about the world’s largest digital camera, gigabit Wi-Fi, digital drinking, and the death of an industry pioneer ... plus some other interesting stuff. Page 10

The Spin Zone
by Jon Williams
Track’em Danno!
While many are uncomfortable with the fast pace of technology, for hobbyists like you and me the speed at which things change means that more interesting components become available for us to experiment with. Page 14

Q&A
by Russell Kincaid
Answers to Questions
Send all questions and comments to: Q&A@nutsvolts.com Page 22

Smiley’s Workshop
by Joe Pardue
It’s About Time
This month, we are going to look at some C theory for structuring data and then do some hands-on lab work using a DS1307 real time clock IC on a breadboard. Page 54

Near Space
by L. Paul Verhage
A New BalloonSat Airframe Design
I had a chance to fly my new BalloonSat on April 22, 2012. The launch took place at the Physics department of Ft. Hays State University (thanks Dr. Adams and Dr. Maseburg). Page 68

Fundamentals For Beginners
Build a Screaming Box
Use this simple light detector circuit to make a Screaming Box to use as a gag or to catch late-night snackers in the act! Page

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