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May (issue #394) Circuit Cellar

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4: Device Trees in Embedded Linux: Using an External LED on a PocketBeagle as an Example, By Pedro Bertoleti

REFERENCES
[1] Tutorial on SSH to BeagleBone Black over USB: https://learn.adafruit.com/ssh-to-beaglebone-black-over-usb

[2] Getting started with Beagleboard: https://beagleboard.org/getting-started#update

[3] Heartbeat trigger code: https://elixir.bootlin.com/linux/v4.8/source/drivers/leds/trigger/ledtrig-heartbeat.c

[4] PocketBeagle SiP documentation: http://octavosystems.com/octavo_products/osd335x-sm/

SOURCES
Book: Derek Molloy. “Exploring Beaglebone: Tools and Techniques for Building with Embedded Linux (second edition)”, Wiley, 2019

PocketBeagle official website: https://beagleboard.org/pocket

Article: “Linux e o suporte à device tree – Parte 2”, by Sergio Prado: https://sergioprado.org/linux-e-o-suporte-a-device-tree-parte-2/

RESOURCES
Octavo Systems | octavosystems.com

Code and Supporting Files


10: Let’s Understand Ground Stitching Vias, By Robert Lacoste

REFERENCES
[1] Robert Lacoste. “The Darker Side – Understanding Proper PCB Design. Part 3 – Controlled Impedance Routing.” Circuit Cellar #371, June 2021.

[2] Sonnet Lite simulation software, free download:  https://www.sonnetsoftware.com/products/lite/download.html

Code and Supporting Files


16: AWS for IoT Projects: Getting Started, By Dhairya Parikh

REFERENCES
[1] Amazon AWS free subscription: https://aws.amazon.com/free/

[2] NodeMCU Arduino setup: https://create.arduino.cc/projecthub/electropeak/getting-started-w-nodemcu-esp8266-on-arduino-ide-28184f

[3] DHT Library: https://github.com/markruys/arduino-DHT

[4] ArduinoJSON: https://github.com/bblanchon/ArduinoJson

[5] GitHub Repository: https://github.com/Dhairya1007/AWS-IoT-Circuit-Cellar-Article-1

RESOURCES
NodeMCU | www.nodemcu.com

Code and Supporting Files


23: TECHNOLOGY FEATURE: Wearable Devices: A Brave New World, By Michael Lynes

REFERENCES
[1] Precedence Research on the wearable technology market: https://www.precedenceresearch.com/wearable-technology-market

[2] Travelers Insurance: How Companies can help reduce risk from Wearables – https://www.travelers.com/resources/business-industries/technology/how-companies-can-help-reduce-risk-from-wearables

[3] Fear of Wearables: “Between Fear and Astonishment: The Rhetorics of Wearable Technology” https://wac.colostate.edu/docs/proceedings/cw2016/tham.pdf

SOURCES
Wearable Tech: https://www.wearabletechnology-news.com/news/2016/sep/16/cutting-through-hype-and-noise-whats-real-deal-wearables/

Science Direct: Wearable Technology – https://www.sciencedirect.com/topics/engineering/wearable-technology

Wearable Technology Applications: https://www.uc.edu/content/dam/refresh/cont-ed-62/olli/newtech1.pdf

Smart Clothing Framework for Health Monitoring Applications: https://www.mdpi.com/2624-6120/3/1/9

RESOURCES
Abilify Mycite | abilifymycitehcp.com
McLear | mclear.com
Neosensory | neosensory.com
Ouraring | ouraring.com
SmartSole | gpssmartsole.com
Softmatter | softmatter.io
Upright | uprightpose.com


28: DATASHEET: IoT Boards and Modules: Connect to the Internet of (All of the) Things, By Sam Wallace

ADLINK Express-RLP: https://www.adlinktech.com/Products/Download.ashx?type=MDownload&isDatasheet=yes&file=2052%5cExpress-RLP-preliminary-datasheet-20230103.pdf

Avent RASynBoard: https://www.avnet.com/opasdata/d120001/medias/docus/210/FY23_1041_RASynBoard_Product_Brief_r5.pdf

Digi ConnectCore MP1: https://www.digi.com/resources/library/data-sheets/digi-connectcore-mp1

Infineon AIROC CYW43022: https://www.infineon.com/dgdl/Infineon-CYW43022-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c869190210186a143ae1e30d0

Laird Connectivity Sterling LWB+: https://www.lairdconnect.com/documentation/datasheet-sterling-lwb-0

NXP K32W1480: https://www.nxp.com/docs/en/data-sheet/K32W1480.pdf

Renesas RYZ024A: https://www.renesas.com/us/en/document/dst/ryz024a-datasheet?r=1636861

Reyax RYS8839: https://reyax.com//upload/products_download/download_file/RYS8839.pdf STMicroelectronics ST87M01: https://www.st.com/en/wireless-connectivity/st87m01.html?icmp=tt31116_gl_pron_feb2023#documentation


32: EMBEDDED SYSTEM ESSENTIALS: Fault Injection and Power Analysis: Part of Your Appliance Repair Toolkit?, By Colin O’Flynn

REFERENCES
[1] Toshiba-TLCS-900-L-Resources Repository: https://github.com/colinoflynn/Toshiba-TLCS-900-L-Resources

[2] chipwhisperer-target-cw308t Repository: https://github.com/newaetech/chipwhisperer-target-cw308t

[3] PyToshLoad Repository: https://github.com/colinoflynn/pytoshload

[4] Embedded Systems Essentials Repository: https://github.com/colinoflynn/circuitcellar-EmbeddedSystemEssentials

[5] Open-source ChipWhisperer-Jupyter repository:  https://github.com/newaetech/chipwhisperer-jupyter

RESOURCES
NewAE Technology Inc. | newae.com

Code and Supporting Files


38: PICKING UP MIXED SIGNALS: A Lock-In Amplifier: Based on a PSoC5LP SoC, By Brian Millier

REFERENCES
[1] AN2099 Infineon Application note describing IIR filter implementation:
https://www.infineon.com/dgdl/Infineon-AN2099_PSoC_1_PSoC_3_PSoC_4_and_PSoC_5LP_Single_Pole_Infinite_Impulse_Response_(IIR)_Filters-ApplicationNotes-v11_00-ENpdf?fileId=8ac78c8c7cdc391c017d072cde6e51bd

SOURCES
CY8CKit-059 PSoC5LP development board:
https://www.infineon.com/cms/en/product/evaluation-boards/cy8ckit-059/

Analog Devices LTC1059 Universal Filter Block:
https://www.analog.com/media/en/technical-documentation/data-sheets/1059fd.pdf

T.I. INA121 Instrumentation Amplifier:
https://www.ti.com/lit/ds/sbos078/sbos078.pdf?ts=1647864015508&ref_url=https%253A%252F%252Fwww.google.com%252F

Recom RAC05-05SK/C14 Power module in IEC320 case: https://www.digikey.ca/en/products/detail/recom-power/RAC05-05SK-C14/9695301?s=N4IgTCBcDaIEoEEDCAGArAWnQZQNIHokBGAFhAF0BfIA

RESOURCES
CUI Inc. | www.cui.com
Recom Power | recom-power.com

Code and Supporting Files


48: FROM THE BENCH: Blood Pressure Record Keeping: Building an ESP32-to-Raspberry Pi Bridge, By Jeff Bachiochi

REFERENCES
[1] NTP Pool Project: https://www.ntppool.org/en/

RESOURCES
Arduino | arduino.cc
Debian | debian.org
Espressif Systems | espressif.com
Heltec Automation | heltec.org

Code and Supporting Files


63: TECH THE FUTURE: The Future of Experience Driving: Smart Digital Cockpits—Enabled, By Miao Luo

REFERENCES
[1] Grand View Research report: https://www.grandviewresearch.com/industry-analysis/automotive-digital-cockpit-market

[2] Mercedez-Benz digitized cockpits: https://www.mercedes-benz.co.uk/passengercars/models/suv/gls/overview.html

[3] Audi digitized cockpits: https://www.hotcars.com/2022-audi-a8-and-s8-refreshed-lineup-details/

[4] Tesla digitized cockpits: https://www.avnet.com/wps/portal/apac/resources/article/fully-automated-smart-cockpit-is-truly-amazing/

[5] Qualcomm to supply GM with cockpit chips for next gen vehicles: https://www.reuters.com/business/autos-transportation/qualcomm-supply-general-motors-with-cockpit-chips-next-generation-vehicles-2021-01-26/

[6] Semiconductor shortage: How the automotive industry can succeed: https://www.mckinsey.com/industries/semiconductors/our-insights/semiconductor-shortage-how-the-automotive-industry-can-succeed

[7] Tesla rewrote its own software to survive the chip shortage: https://www.theverge.com/2021/7/26/22595060/tesla-chip-shortage-software-rewriting-ev-processor

[8] Reducing driving error accidents: https://www.orsa.org.uk/reducing-occupational-road-risk/reducing-driver-error-accidents/#:~:text=In%20reality%2C%20car%20crashes%20aren,human%20error%2C%20not%20an%20accident

RESOURCES
The Qt Company | www.qt.io

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May (issue #394) Circuit Cellar

by Circuit Cellar Staff time to read: 4 min