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December 2013

Nuts and Volts Magazine

The HexBright Project - Shedding some light on Kickstarter

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Features

The Good, the Bad, and the HexBright

Follow Christian’s journey with Kickstarter for his Arduino-based flashlight that finished in the top 10 most funded projects.



Projects

Construction of a Low Budget 180 MHz RF Sweep Generator

Your bench could be sporting a unit like this for around $75 in parts... plus your labor, of course.


Build a Wireless Silent Alarm Warning System

This is an inexpensive transmitter /receiver system you can build in one night that will let you know if something is amiss.


My Christmas Can Light Dimmer

Since I wasn’t going to be able to replace my incandescent icicle lights with new LED versions, I needed a way to extend their life.


MakerPlot — The DIY Software Kit Part 3

This time, learn how to connect your microcontroller to the software to plot a single channel of analog data. Plus, see how to scale raw ADC data into corresponding voltage levels so you don’t have to do math inside your micro.



Columns

PICAXE Primer
by Ron Hackett
The Ins and Outs of Python Programming
Start off with a few Python experiments with digital inputs on the Raspberry Pi, then implement a Cylon Eye project to continue our quest of interfacing the PICAXE with a Pi.

Q&A
by Russell Kincaid
Reader Questions Answered Here 12.2013
Bandpass filters, 12 volt control, and NiCad battery chargers are asked about and answered this time.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 65: Arduino Handheld Prototyper — Part 6
It’s a wrap with data logging. Learn how to upload sensor data directly to a PC — first, via the serial port and then using an SD card.

Open Communication
by Louis E. Frenzel
Wireless Watches Will Win the Wearable Wars
Even though cell phones have encroached on the time-keeping arena, you may want to rethink the wristwatch concept.

TechKnowledgey
by Jeff Eckert
Events, Advances, and News 12.2013
Light-emitting pasta, Intel + Arduino = Galileo, a DC meter suitable for battery monitoring, and an IEEE conference in Vegas are just some of the highlights from this month’s selection.