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October 2016

Nuts and Volts Magazine

Time to upgrade your oscilloscope? Find out in this issue!

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Features

Choosing an Oscilloscope

15 tips that can make selecting the appropriate oscilloscope for your task at hand a lot easier.



Projects

Tricky Train Control with an Analog VOX

Use voice control to manipulate your model train set. This circuit is also perfect to implement on other types of projects you’d like to command with your words.


Build the Toilet Sentinel

Build a Toilet Sentinel circuit that alerts you when the toilet flapper has not sealed properly, allowing water to continue to run.


Make Your Own Portable Media Center

With a few pieces of hardware and a Raspberry Pi, you can have a traveling entertainment system that fits in the palm of your hand.



Columns

Q&A
by Kristen McIntyre
Reader Questions Answered Here (10.2016)
Questions regarding how to build a gate and a case where battery polarity is not important are addressed, plus help is provided regarding a set of Archer ICs.

Open Communication
by Louis E. Frenzel
What’s in the Works for Wireless?
Wireless is so ubiquitous these days, we take it for granted. However, there are even more things to expect for/from it in the future.

Near Space
by L. Paul Verhage
My First Near Space Payload to Need an FAA Waiver
Setting “records” with a particular secret near space payload that required special FAA clearance .

Practical 3D Printing
by Chuck Hellebuyck
Resistor/Diode Tester
Modifying a previous 3D print into a different kind of component holder.

The Design Cycle
by Fred Eady
Get Up and Running Quickly with BLE
Use Microchip’s new BM70 Bluetooth Low Energy (BLE) radio module and you’ll be able to communicate with your smartphone without any low-level BLE programming or expensive compilers and programmers.

Departments

Self-Monitoring Made Easy
by Bryan Bergeron
It’s never been easier or more affordable to self-monitor everything from your heart rate to your body fat composition.