Article Materials and Resources

April (issue #393) Circuit Cellar

Click here for the Circuit Cellar article code archive


This issue is available in PDF format from our webshop.
As individual articles are made available on the website they will be linked on the TOC page-here


4: Joulescope JS220: A Precision DC Energy Analyzer, By Brian Millier

REFERENCES
[1] jetperch/jls—Performant data storage for huge, simultaneous, one-dimensional signals (github.com): https://github.com/jetperch/jls/tree/dc6770f36c62d167d2953dc7ee0f9b322dc97e8a

[2] jetperch/js220_evk1: Joulescope JS220 Evaluation Kit 1 (github.com): https://github.com/jetperch/js220_evk1

[3] jetperch/pyjoulescope_ui: Joulescope UI source code (github.com): https://github.com/jetperch/pyjoulescope_ui

[4] jetperch/pyjoulescope_examples: Python scripting and programming examples using the joulescope package (github.com): https://github.com/jetperch/pyjoulescope_examples

RESOURCES
Agilent Technologies | www.agilent.com
DFRobot Electronics | www.dfrobot.com
Espressif Systems | www.espressif.com
Hewlett Packard | www.hp.com
Joulescope | www.joulescope.com
Raspberry Pi | www.raspberrypi.com

Code and Supporting Files


14: Vintage-Style Tube Amplifier for Musicians: Built Using an ADAU1701 Audio System Chip and ESP32 MCU, By Avian Marinakis

RESOURCES
Altium | www.altium.com
Analog Devices | www.analog.com
Espressif Systems | www.espressif.com
Hammond Manufacturing | www.hammfg.com
MIT App Inventor | appinventor.mit.edu
Wondom | store.sure-electronics.com

SOURCES
Fender Amplifiers: https://www.fender.com/en-US/guitar-amplifiers/
Wondom APM2: https://store.sure-electronics.com/product/AA-AP23122
ADAU1701: https://www.analog.com/en/products/adau1701.html
SigmaStudio:  https://www.analog.com/en/design-center/evaluation-hardware-and-software/software/ss_sigst_02.html
Audacity: https://www.audacityteam.org/
Analog Devices: https://www.analog.com/en/index.html
ESP32: https://www.espressif.com/en/products/socs/esp32
Altium Designer: https://www.altium.com/altium-designer

Code and Supporting Files


REFERENCES
[1] Arduino webpage for downloading Arduino IDE 2.0.3: https://www.arduino.cc/en/software

[2] FreeRTOS for Arduino library GitHub repository: https://github.com/feilipu/Arduino_FreeRTOS_Library/archive/refs/heads/master.zip

[3] Liquid Crystal I2C Arduino library GitHub repository: https://github.com/johnrickman/LiquidCrystal_I2C/archive/refs/heads/master.zip

[4] FreeRTOS APIs, official documentation: https://www.freertos.org/a00106.html

[5] The vTaskDelay() API, detailed discussion: https://www.freertos.org/a00127.html

[6] The uxTaskGetStackHighWaterMark() API, detailed discussion: https://www.freertos.org/uxTaskGetStackHighWaterMark.html

RESOURCES
FreeRTOS | www.freertos.org

Code and Supporting Files


28: TECHNOLOGY FEATURE: Sensors: Integration and Development, By Michael Lynes

REFERENCES
[1] AgSensor Solutions Inc – The current state of Sensor Development: https://www.agsensorsolutions.com/the-current-state-of-sensor-development

[2] Wheatstone Bridge: https://en.wikipedia.org/wiki/Wheatstone_bridge#:~:text=A%20Wheatstone%20bridge%20is%20an,which%20includes%20the%20unknown%20component

[3] Sensor Development page on Science Direct: https://www.sciencedirect.com/topics/earth-and-planetary-sciences/sensor-development

[4] Science Direct article on lactate monitoring: https://www.sciencedirect.com/science/article/abs/pii/S1572665722003307

[5] Honeywell Sensor Evaluation Kits: https://sps.honeywell.com/us/en/products/advanced-sensing-technologies/healthcare-sensing/sensor-evaluation-kits/sensor-evaluation-kits

[6] Arrow Sensor Development Boards: https://www.arrow.com/en/research-and-events/articles/highlighting-5-unique-sensor-development-boards

[7] Rahman Spectroscopy: https://www.s-3llc.com/uv-raman.html

RESOURCES
AGD Consulting | www.agdconsult.com
AgSensor Solutions | www.agsensorsolutions.com
Arrow | www.arrow.com
HiTecSensors | hitec.humaneticsgroup.com
Honeywell | sps.honeywell.com
Load Cells (Sensor Developments, Inc.) | www.load-cells.org
LogiSync | www.logisync.com
Science Direct | www.sciencedirect.com
Sensor Development, Inc. | www.sensordev.com
Sensor Development International | www.sdinternational.nl
Spectral Sensor Solutions | www.s-3llc.com


34: DATASHEET: 32-Bit Microcontrollers: Chips That Won’t Stop Evolving, By Sam Wallace

Analog Devices MAX32672: https://www.analog.com/media/en/technical-documentation/data-sheets/MAX32672.pdf
Infineon XMC7200: https://www.infineon.com/dgdl/Infineon-XMC-7200-Datasheet-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c8412f8d30184443173374425
Microchip PIC32CXMTSH: https://ww1.microchip.com/downloads/aemDocuments/documents/SE/ProductDocuments/DataSheets/PIC32CXMTSH-Data-Sheet-DS60001770.pdf
NXP Semiconductors LPC55S0x/LPC550x: https://www.nxp.com/docs/en/data-sheet/LPC55S0x_LPC550x_DS.pdf
Renesas RA4E2: www.renesas.com
Silicon Labs EFM32PG23: https://www.silabs.com/documents/public/data-sheets/efm32pg23-datasheet.pdf
STMicroelectronics STM32C031x4/x6: https://www.st.com/resource/en/datasheet/stm32c031.pdf
Texas Instruments TMS320F28003x: https://www.ti.com/lit/ds/symlink/tms320f280037.pdf?ts=1677057458082
WCH CH32V003DS0: http://www.wch-ic.com/downloads/CH32V003DS0_PDF.html


38: THE MAGIC SMOKE FACTORY: Thermistors: Sensitive Resistors to Measure Temperature, By Joseph Corleto

REFERENCES
[1] Quote From Littelfuse: https://www.littelfuse.com/technical-resources/technical-centers/temperature-sensors/thermistor-info/thermistor-terminology/thermal-time-constant.aspx#:~:text=The%20technical%20definition%20of%20Thermal,%2C%20under%20zero%20power%20conditions%22

[2] Thermistor from Adafruit: https://www.adafruit.com/product/372

RESOURCES
Espressif | www.espressif.com

Code and Supporting Files


43: START TO FINISH: Biometrics: How Do I Know You Are Who You Say You Are?, By Stuart Ball

RESOURCES
Texas Instruments | www.ti.com
MikroElektronika | www.mikroe.com

SOURCES
TI TM4C1233H6PM product page: https://www.ti.com/product/TM4C1233H6PM

Code and Supporting Files


48: EMBEDDED IN THIN SLICES: Debugging Embedded Real-Time Systems: Strategies for Duplicating Bugs, By Bob Japenga

RESOURCES
[1] Overview of past and present RNAV: https://www.icao.int/WACAF/Documents/Meetings/2014/OPS-Approval/14%20October%202014/01%20-%20Introduction%20to%20RNAV.pdf

[2] Horse idioms: see https://horseyhooves.com/horse-idioms/

[3] Wikipedia entry on HALT: https://en.wikipedia.org/wiki/Highly_accelerated_life_test

[4] “Fundamentals of HALT/HASS Testing” (PDF). Keithley Instruments, Inc. Cleveland, Ohio. 2000.: https://download.tek.com/document/HALT_HASS_WP.pdf


52: FROM THE BENCH: Digital Audio Files: Replacing a Proprietary Format, By Jeff Bachiochi

REFERENCES
[1] Comparison of audio coding formats: https://en.wikipedia.org/wiki/Comparison_of_audio_coding_formats

[2] Article on “The Nyquist Frequency and Aliasing”: https://cmtext.indiana.edu/digital_audio/chapter5_nyquist.php

[3] Wikipedia on ID3: https://en.wikipedia.org/wiki/ID3

[4] Free hex editor (with time-limited structure viewer feature that will identify .mp3 tags and frames): https://www.hhdsoftware.com/

[5] MPEG Audio Compression Basics: http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm

[6] How to play .mp3 files from SD via I2S: https://github.com/schreibfaul1/ESP32-audioI2S

RESOURCES
Audacity | www.audacityteam.org
Espressif | www.espressif.com

Code and Supporting Files

Keep up-to-date with our FREE Weekly Newsletter!

Don't miss out on upcoming issues of Circuit Cellar.


Note: We’ve made the May 2020 issue of Circuit Cellar available as a free sample issue. In it, you’ll find a rich variety of the kinds of articles and information that exemplify a typical issue of the current magazine.

Would you like to write for Circuit Cellar? We are always accepting articles/posts from the technical community. Get in touch with us and let's discuss your ideas.
Sponsor this Article
Website | + posts

Circuit Cellar's editorial team comprises professional engineers, technical editors, and digital media specialists. You can reach the Editorial Department at editorial@circuitcellar.com, @circuitcellar, and facebook.com/circuitcellar

Supporting Companies

Upcoming Events


Copyright © KCK Media Corp.
All Rights Reserved

Copyright © 2023 KCK Media Corp.

April (issue #393) Circuit Cellar

by Circuit Cellar Staff time to read: 4 min