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July 2013

Nuts and Volts Magazine

Camera Control Using Bluetooh & iOS

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Features

Rock-ola Jukebox Amp With CD Players and iPhones

This system plays my collection of vintage rock and roll and country music songs the way I remember how they used to sound.



Projects

Build A Bluetooth Controller For Your Digital Camera

Digital Electronics

Now, you can easily do self-portraits, group shots, and time-lapse photos by leveraging your favorite iOS device as the wireless user interface. You’ll be able to incorporate this circuit into other projects, as well.


Build An Emergency Radiation Monitor Alarm

Electronic Gadgets

This easy-to-build device makes a perfect addition to an emergency preparedness kit.


Make A Smart Necklace

Electronic Gadgets

Your Mardi Gras “beads” will be the talk of the town with this customizable jewelry that makes great gifts too!



Columns

TechKnowledgey
by Jeff Eckert
Events, Advances, and News (7.2013)
Raising our taxels, free image enhancement, and finding hidden cell phones are just some of the interesting tidbits discussed this time around.

The Spin Zone
by Jon McPhalen
Sounding Off With WAV Files
Learn how to play audio with the Propeller, while it’s doing other functions.

Q&A
by Ron Hackett
Reader Questions Answered Here
A radio modification, a beginner’s question, a Jacob’s ladder circuit, electret microphones, and a stable, accurate oscillator are covered.

The Design Cycle
by Fred Eady
Accessing Bluetooth For Remote Control Action
This month, we will eliminate the wires and use a $2 Bluetooth dongle to connect Microchip's most powerful microcontroller to our PlayStation DualShock 3. By the time you read the last sentence, you will be able to remote-control enable anything you can attach to the I/O pins of a PIC32MX.

Near Space
by L. Paul Verhage
LED Photometers Revisited — Part 2
Test and calibrate this upgraded version to collect photometer data in near space.

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 60: Arduino Handheld Prototyper — Part 1
Create portable Arduino prototypes with this cool device that gives you the power to control the world (or smaller stuff) in your own two hands. Part 60-1