N&V May/June 2018

Features

Understanding Ohm’s Law with a “Trick” Question

Stimulate thinking about Ohm’s Law with these “trick” questions.

Setting Up the Raspberry Pi 3

A learning tutorial for the Raspberry Pi 3 on a stick.

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Projects

Build an Analog-Style LED Clock — Part 2

Part 2 - Finishing the circuit, making the printed circuit board, building the clock, and how the software works.

Build a Continuity Tester

Go old-school with this custom design of a continuity tester.

Build a Musical Laser Rainbow Machine

Make liquid light with lasers and music.

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Columns

TechKnowledgey
by Jeff Eckert
Events, Advances, and News (05.2018)
Information on current events, advances, and news in various technology fields.

Q&A
by Kristen McIntyre
Reader Questions Answered Here (05.2018)
Questions about a moisture monitor; IDE madness; and how to lever up with steppers.

The Ham’s Wireless Workbench
by H. Ward Silver
Antenna Supports: What You Need to Know Aloft
Questions about targeted dunking, sensor inversion, and training a train.

The Design Cycle
by Fred Eady
EasyPIC Fusion v7 Development Board Really Clicks with Cellular IoT
Cellular IoT on the cheap.

Near Space
by L. Paul Verhage
raspberry-pi-zero-flight-computer
Exploring the Raspberry Pi as a flight computer for BalloonSat missions.

The Spin Zone
by Jon McPhalen
Programming in the Real World
My focus this time is on the counters, and how their flexibility helped me knock out a critical application in very little time.

Open Communication
by Louis E. Frenzel
Seven Common Ways to Generate a Sine Wave
There are literally dozens of ways to generate a sine wave. Here are some of the more popular methods you should be familiar with.

Departments

The Boiling Frog
by Bryan Bergeron
The parable of the boiling frog is a metaphor that aptly describes many commodity electronics products