4 July 2017
18 Build an Adaptable Controller
Last month, we saw how Project SMART students put
together a flight controller that can be used in near space
ballooning projects. This month, we’ll introduce the
software and highlight some of its key features.
; By Richard Levergood and Maria Panacopoulos 23 tDCS — Brain Hacking?
I’ve been following recent exciting research in
neurostimulation using transcranial direct current
stimulation (tDCS), so I thought I’d design a simple circuit
to try it out myself.
; By Walt Noon 30 Build an ESP8266 World Clock
Build on previous ESP8266 projects to add a customizable
world clock to your arsenal of time keepers.
; By Craig A. Lindley 36 Working with I2C Sensor Devices
Here’s a quick beginner-friendly tutorial that shows you
how to interface and read data with this popular serial
; By Derek Hildreth
42 Building Your Own Microcontroller
Ever wanna make your own MCU? Then, follow along
with this discussion that can be useful for anyone wanting
to learn about computing basics, microcontrollers,
embedded programming, and/or VHDL.
; By Fàbio Pereira
Reader Questions Answered Here
Topics discussed this month:
• A Simple Current Source
• A Block Heater Power Indicator
• Arduinos and LEDs — Redux 12 The Spin Zone
Adventures in Propeller Programming
A Block On the Old Chip
BlocklyProp is a fun and easy way to build a Propeller
program — piece by piece — using blocks. You should
give BlocklyProp a try. If you're new to the Propeller, it's a
way to get started without the worry of syntax rules. If
you're a crotchety old dude like me, it's another tool to
help others and, perhaps, to look at code from a different
point of view.
50 The Ham’s Wireless Workbench
Practical Technology from the Ham World
The Solar Eclipse and Ham Radio
Tune in to a very unusual on-the-air experience when
there will be a rarely-seen total solar eclipse happening
this August. 55 The Design Cycle
Advanced Techniques for Design Engineers
Put on a PiFace
Trying to bake up a Raspberry Pi with Python? Shake the
snake and bake your Pi with B4J! This month, we will
mount a PiFace on our Raspberry Pi and mix up some
application code using a free Rapid Application
Development tool called B4J.
Nuts & Volts (ISSN 1528-9885/CDN Pub Agree #40702530) is published monthly for $26.95 per year by T & L Publications, Inc., 430 Princeland Court, Corona, CA 92879. PERIODICALS POSTAGE PAID AT
CORONA, CA AND AT ADDITIONAL MAILING OFFICES. POSTMAS TER: Send address changes to Nuts & Volts, P. O. Box 15277, North Hollywood, CA 91615 or Station A, P.O. Box 54, Windsor ON N9A
What’s in Your Grab-and-Go?
06 READER FEEDBACK
17 NEW PRODUCTS
60 NV WEBSTORE
62 TECH FORUM
65 AD INDEX
Nuts & Volts — PO Box 15277
North Hollywood, CA 91615-9218
Call 877-525-2539 or go to www.nutsvolts.com
Subscribe • Gift • Renewal • Change of Info
Formoredetails onsubscribing, seeouradon Page64.
Cover Model: Shasten Johnson
Layout and Art by Matthew Roddy