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October 2007

Nuts and Volts Magazine


Features

DFT Basics

For some electronics hobbyists, the discrete Fourier transform, or DFT, is a feared and mysterious entity that is best left to the “experts” or those who practice in the field of digital signal processing (DSP) on a daily basis...


Digital TV — Ready or Not, Here it Comes!

February 17, 2009 — a date that may not live in infamy, but nevertheless will witness a monumental change in the US television broadcasting landscape...



Projects

Analog: Mixed and Matched

The device described in this article is both a 4:1 audio mixer and a 1:4 distribution system. Each of the input and output channels has its own volume control...


Build a Wireless Weather System: Part 2

In this installment of the wireless weather station, I am going to show you how to build the Indoor Weather Satellite. Once assembled, we will run some tests with our PC interface satellite as shown in the network diagram in Figure 1...


Tilt Lights

These simple-to-build tilt light projects were designed to please different members of the family.There’s a tilt flashlight for mom, a tilt emergency light for dad, a tilt curio box light for a little girl, and a tilt dump truck light for a little boy...


Bingo!

This project was inspired when I was playing BINGO with my friends. Somehow during play, the numbers that were called got mixed up, and there was confusion as to whether or not one of the players had actually won the game...



Columns

TechKnowledgey
by Jeff Eckert
Techknowledgey 2007
Detecting Cancer with light, Another Step toward Fusion, Sun Introduces New Microprocessor, Software Enhances NASCAR, Name-Based Search Engine, and Audio Amp Driver Introduced

In The Spotlight
by Marvin Mallon
An Interview with Johan Smit
This month’s spotlight is on Electronics 123 whose headquarters is in Columbiana — a town of about 6,000 population located 78 miles southeast of Cleveland on the eastern edge of Ohio...

The Design Cycle
by Fred Eady
Peter Best Circles The Drain
Peter and I worked together on the EDTP Ethernet MINI C-to-PBP (PICBASIC PRO) conversion project that you have been reading about in this series of Design Cycle episodes...

Q&A
by Russell Kincaid
Q&A
In this column, I answer questions about all aspects of electronics, including computer hardware, software, circuits, electronic theory, troubleshooting, and anything else of interest to the hobbyist.

Open Communication
by Louis E. Frenzel
HD Radio In Your Future?
I just finished testing Radiosophy’s new HD100 digital radio and was impressed enough to want to tell you about it. In case you are still in the dark about this radio technology, HD radio is the digital radio service that...

Personal Robotics
by Vern Graner
Evolution of the BoogieBot Mobile Platform
Music has been a big part of my life as far back as I can remember. I’ve played music in bands, composed and produced music, and (for a short time in the ‘80s) I even made my living playing in a rock band...

Getting Started With PICS
by Chuck Hellebuyck
PICkit™ 2 Starter KIT vs. PICkit 2 Debug Express
If you’ve been reading this column on a regular basis, you will — no doubt — have realized that I’m always on the lookout for a better and lower-cost starter package, or at least programming solution...

Departments

New Products
by Nuts & Volts Magazine
CCS is now offering PCD which is a low cost, quality 24-bit C compiler for PIC24 MCUs and dsPIC® DSCs. PCD is in the fundamental development period and now available for sale at http://www.ccsinfo.com/picc...

Developing Perspectives
by Bryan Bergeron
In this issue of Nuts & Volts, we’re fortunate to feature several excellent articles, including Jeff Mazur’s introduction to digital broadcasting and Paul Kafig’s discussion of thediscrete Fourier transform (DFT). Both topics represent sea changes in the evolution of electronics, but through very different mechanisms...