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October 2013

Nuts and Volts Magazine


Features

Get Amp’ed Up Over the Theory Behind Building a Headset or Power Amplifier

Previous articles detailed the assembly of a power amplifier and headset amplifier. Here, we'll discuss the theory of operation behind both.


MakerPlot — The DIY Software Kit

So, you’ve designed a microcontroller project. Have you thought about how that data is displayed, logged, debugged, or otherwise gets presented to you for display and analysis?



Projects

Build the Wireless Super Detector

Circuits

This project started out with a singular focus and grew into a multi-purpose circuit with all kinds of sensors for detection and alarm applications.


Build the LED Matrix Game Player

With a little imagination and a whole lot of time on your hands, you can create simple — yet amazing — action games you can play anywhere!



Columns

TechKnowledgey
by Jeff Eckert
Events, Advances, and News (10.2013)
Brain sparks, USB speeding up, a free 3D printer (maybe), and digitizing the throne are just a few of the hot topics discussed this time around.

PICAXE Primer
by Ron Hackett
Getting Started With Python Programming
We're going to begin our Raspberry Pi programming experiments by implementing a simple "Hello World!" program using Python, and then move on to the basics of controlling the RPi's GPIO pins with a Python program.

Q&A
by Russell Kincaid
Reader Questions Answered Here (10.2013)
A Tesla coil project, an infrared pulse amplifier, a mini LTspice tutorial, a backup camera mod, some newbie questions, and MailBag round out this month’s coverage.

The Design Cycle
by Fred Eady
Programming the Brains Behind CNC Milling Tools and Motors
Whether you’re planning a custom CNC application or an embedded monitor and control project, these gizmos will help things add up in your automation.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 63: Arduino Handheld Prototyper — Part 4
Finishing the fresh air controller design — mainly seeing how to communicate with the user via the I2C mini terminal LCD and pushbutton keys. Part 63-4

Open Communication
by Louis E. Frenzel
10 Things You Need to Know About Wi-Fi
Discover facts about this familiar wireless technology that you may not already know.