August (issue #337) Circuit Cellar

Click here for the Circuit Cellar article code archive

p. 6: Build an Audio Response Light Display: Modern LEDs in Action,
By Devlin Gualtieri

Printed circuit board positive for the audio response light display.

Diagram of the board’s component layout (the board shown in Figure 6)..

The author’s unit used superbright LED automotive dome lights available at Amazon

One source of Krylon Matte Finish spray is Michaels:

Dr. Gualtieri writes a science and technology blog at http://www.tikalon.com/blog/blog.php.

Dr. Gualtieri is also the author of three science fiction novels and books about science and mathematics. See http://www.tikalonpress.com, or his Amazon author’s page (https://www.amazon.com/Dev-Gualtieri/e/B00NUA4YYU/) for details.

p. 12: Murphy’s Laws in the DSP World (Part 2): The Next Three Laws,
By Michael Smith, Mai Tanaka and Ehsan Shahrabi Farahani

(See link at top of this page for the article code archive.)

Mathworks | www.mathworks.com
GNU Octave | www.gnu.org/software/octave

FIGURE 4 (From Part 1- June)
(a) A short burst of a sinusoidal signal centered in a 1 second sampling period unexpectedly shows (b) a frequency spectrum involving convolution with a high frequency variant (red) of a sinc() function rather than the expected low frequency version (blue).

p. 28: Signature Analyzer Uses NXP MCU: Scope-Free Tester, By Brian Millier

(See link at top of this page for the article code archive. The Arduino library folder and source code are available there.)

To compile the code needed for this project, install the Arduino IDE from:
https://www.arduino.cc/en/Main/Software

… and then go to PJRC’s web-site and download the Teensyduino plug-in at:
https://www.pjrc.com/teensy/td_download.html.

PART SOURCES:

Teensy 3.5 Development module: PJRC

Touch-screen Display Module:
MikroElektronika Connect Eve module (Digikey 1471-1104-ND)

or FTDI VM800B43 module (DigiKey 768-1194-ND)

INA121, INA128 Instrumentation amplifiers: Texas Instruments

MCP41010 SPI digital pot: Microchip

12 volt switching power supplies:
Mean Well EPS-15-12 (DigiKey 1866-1667-ND)

PCF8574AN I²C Expander: Texas Instruments

p. 36: Managing FPGA Design, Complexity: Easing IP Integration,
By Bob Sgandurra

Pentek | www.pentek.com

p. 41: FPGA Solutions Evolve to Meet AI Needs: Brainy System ICs, By Jeff Child

p. 46: MCUs and Processors Vie for Embedded Mindshare: Performance Push, By Jeff Child

p. 50: Tiny Embedded Boards: Compact Computing, By Jeff Child

(to be done)

p. 54: EMBEDDED IN THIN SLICES: Internet of Things Security (Part 4):
The Power of Checklists, By Bob Japenga

References:
[1] Photo from https://commons.wikimedia.org/wiki/File:Color_Photographed_B-17E_in_Flight.jpg
[2] https://www.flyaoamedia.com/wp-content/uploads/2009/12/checklist03.jpg
Used by permission of the owner
[3] https://www.amazon.com/Unbroken-World-Survival-Resilience-Redemption/dp/1400064163/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=&sr
[4] https://www.amazon.com/Checklist-Manifesto-How-Things-Right-ebook/dp/B0030V0PEW/ref=mt_kindle?_encoding=UTF8&me
[5] https://www.iso.org/standard/51585.html
[6] The Embedded Muse No 346 March 19, 2018 http://www.ganssle.com/tem/tem346.html
[7] https://www.iso.org/standard/50341.html
[8] https://www.iso.org/standard/46412.html
[9] https://www.iso.org/standard/73906.html
[10] https://www.commoncriteriaportal.org
[11] https://webstore.iec.ch/publication/59769
[12] https://www.iso.org/standard/65529.html
[13] https://www.iso.org/standard/64686.html
[14] https://www.iso.org/standard/59978.html
[15] This wiki includes a list of all of the 27K standards: https://en.wikipedia.org/wiki/ISO/IEC_27000-series
[16] ISO 14971 Medical Devices – Application of risk management to medical devices
[17] The Common Criteria Part 1: https://www.commoncriteriaportal.org/files/ccfiles/CCPART1V3.1R3.pdf
provides a good, albeit very general definition of assets

p. 58: THE DARKER SIDE: Pitfalls of Filtering Pulsed Signals: Waveform Woes,
By Robert Lacoste

Frequency spectrum of a tone burst General Radio company, 1965

Sinc function http://mathworld.wolfram.com/SincFunction.html

Scilab | www.scilab.org

p. 64: THE CONSUMMATE ENGINEER: Thermoelectric Cooling (Part 2):
The Test Results, By George Novacek

References:
[1] Peltier module TEC12706 Specification http://peltiermodules.com/peltier.datasheet/TEC1-12706.pdf
[2] Peltier Application Note http://www.cui.com/catalog/resource/peltier-app-note.pdf
[2] Adafruit Peltier Module Assembly https://www.adafruit.com/product/1335
[4] Meerstetter – TEC Peltier Element Design Guide https://www.meerstetter.ch/compendium/tec-peltier-element-design-guide
[5] Improvement in the COP of Thermoelectric Cooler http://www.ijstr.org/final-print/may2016/Improvement-In-The-Cop-Of-Thermoelectric-Cooler.pdf

Adafruit | www.adafruit.com
Peltier Modules | www.peltiermodules.com

p. 68: FROM THE BENCH: Electronic Speed Control (Part 2):
Building the Circuitry, By Jeff Bachiochi

Infineon Technologies
IPP034N03L G – OptiMOS3 FET

Microchip Technology
PIC18F2431 – Flash Microcontroller with High Performance PWM and A/D
and
MIC4604 – MICREL Half Bridge MOSFET Driver

Infineon Technologies | www.infineon.com
Microchip Technology | www.microchip.com

p. 79: The Future of Cellular in the IoT: What 5G Means for the IoT’s Road Ahead, By Gil Ben-Dov

Total Phase blog posts:
:“How Embedded Is Your World?”
“The Future of AI and the Embedded System”

Total Phase | www.totalphase.com

Article Materials for Circuit Cellar Magazine Issue 337 • August 2018 — Get a PDF of the Issue

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August (issue #337) Circuit Cellar