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January 2018

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Features

Measuring Resistance with the Mentor’s Friend

Measure resistance with the Mentor’s Friend using a simple RC decay circuit and algorithm.



Projects

DIY WeMo for Home Automation

Use WeMo to wirelessly turn lights on and off from the comfort of your couch.


Build a Custom Weather Gauge — Part 2

Explore Internet connected digital & analog displays with this custom weather gauge platform.


Speaker Protection and Muting with an Optical Coupler

Build this optically-coupled speaker protection circuit when using homebrew or vintage amplifiers.



Columns

Q&A
by Kristen McIntyre
Reader Questions Answered Here (01.2018)
Questions regarding PIC sounds for a camera; going the distance with I2C; and analog flickering.

The Spin Zone
by Jon McPhalen
Fun & Games with the Propeller
Repurposing code and components in Propeller projects.

The Ham’s Wireless Workbench
by H. Ward Silver
Ham Radio in a Pinch
When disaster strikes, ham radio keeps working when other means of communication go down.

The Design Cycle
by Fred Eady
Graphical LCD Programming with the Touch Display 4.3
Send those outdated serial port menu routines into the Recycle Bin and go graphical with CCS’ Touch Display 4.3 Development Kit.

TechKnowledgey
by Jeff Eckert
Events, Advances, and News (01.2018)
Information on current events, advances, and news in various technology fields.

Departments

Infrastructure Dependence
by Bryan Bergeron
Are virtual instruments making us too dependent on network providers?