4 November 2016
22 ESP8266 Weather Clock
If you recall my NTP clock utilizing the ESP8266 module,
then you’ll appreciate this “upgrade” to it that combines a
weather station and timepiece all in one.
■ By Craig A. Lindley
28 A 3-in-1 Tester for Your Lab
This article describes a piece of test equipment that
combines a variable DC voltage reference, a
programmable function wave generator, and a fully
functional frequency counter, and it costs less than $150.
■ By Jim Teixeira
36 Using Programmable RGB LED
Strips in Arrays
I’ve always wanted to build an LED table, and using LED
strips made it super easy. Here’s how I did it.
■ By Theron Wierenga
08 TechKnowledgey 2016
Events, Advances, and News
Get the latest info on a supremely dense memory that’s
been created, the world’s smallest reed switch, edible
batteries, tubes with Bluetooth, plus other techie stuff.
12 The Ham’s Wireless
Practical Technology from the Ham World
Shielding and Shielded Cables
For low frequency control, switching, and DC power, it is
possible to get the job done without worrying too much
about wiring and cabling practices. However, when RF
gremlins begin to appear, suddenly, a whole new set of
cautions and constraints gets piled on to your “simple”
project. This column provides an overview of shielding,
including some practices you should know as a defense
against these gremlins.
Reader Questions Answered Here
Repurposing X10 cameras and the real reason op-amps
are called what they are head up this month’s discussion.
46 The Spin Zone
Adventures in Propeller Programming
Strings & Things
A frequent topic of discussion by newcomers on the
Propeller forum is the use of strings. Spin doesn't have an
explicit string type, so this can be a little confusing at first.
Have no fear! Working with strings is very simple.
54 The Design Cycle
Advanced Techniques for Design Engineers
Nordic’s New nRF52832 Gets You On Track with
BLE is a BIG thing these days. Get in on how to design the
hardware and write the code for Nordic Semiconductor’s
ubiquitous nRF5 SoCs. In this series of discussions, we
will utilize Nordic’s BLE development tools and the Keil
Cortex-M C compiler to bring a BLE project to life. Follow
along as Fred takes you through the complete Nordic BLE
device design cycle.
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