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April (issue #405) Circuit Cellar

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4: No Blues with Bluetooth!: Part 1: An Introduction…, By Robert Lacoste

RESOURCES
Bluetooth SIG | www.bluetooth.com

REFERENCES
[1] Robert Lacoste, “Let’s Understand Ground Stitching Vias.” Circuit Cellar 394, May 2023.
[2] Idiotic IoT Devices Nobody Asked For: https://gizmodo.com/15-idiotic-internet-of-things-devices-nobody-asked-for-1794330999
[3] Hedy Lamarr Wikipedia article: https://en.wikipedia.org/wiki/Hedy_Lamarr
[4] Origin of the Bluetooth name: https://www.bluetooth.com/about-us/bluetooth-origin/
[5] SIG member directory: https://www.bluetooth.com/develop-with-bluetooth/join/member-directory/
[6] SIG membership benefits: https://www.bluetooth.com/develop-with-bluetooth/join/membership-benefits/
[7] 2023 Bluetooth Market Update: https://www.bluetooth.com/2023-market-update/
[8] Medium—“Who own them and how much are the essential patents to make a telephone?”: https://medium.com/@Xataka/who-own-them-and-how-much-are-the-essential-patents-to-make-a-telephone-a7f35657b391
[9] Bluetooth.com—“All the Essentials You Need to Brand Your Bluetooth Product”: https://www.bluetooth.com/develop-with-bluetooth/marketing-branding/
[10] Moses Singer—“Bluetooth’s Trademark Infringement Action Distorted by First Sale Doctrine”: https://www.mosessinger.com/publications/bluetooths-trademark-infringement-action-distorted-by-first-sale-doctrine


10: Zephyr RTOS: A Small, Real-Time Operating System for Embedded Devices, By Pedro Bertoleti

RESOURCES
The Zephyr Project | www.zephyrproject.org

REFERENCES
[1] Zephyr Project GitHub repository: https://github.com/zephyrproject-rtos/zephyr/
[2] Zephyr Project official website: https://www.zephyrproject.org/
[3] All subsystems supported by Zephyr RTOS:  https://github.com/zephyrproject-rtos/zephyr/tree/main/subsys
[4] Examples of the subsystems: https://github.com/zephyrproject-rtos/zephyr/tree/main/samples/subsys
[5] Instructions for preparing Zephyr RTOS development environment in a Windows or macOS operating system: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
[6] Pulse counter with LoRaWAN connectivity project repository on GitHub: https://github.com/phfbertoleti/pulse_counter_project_zephyr/
[7] Zilia Technologies website: https://ziliatech.com/iot/
https://docs.zephyrproject.org/latest/develop/getting_started/index.html

Code and Supporting Files


22: Silicon Integrated Circuit Manufacturing: Part 2: Making the Chips That Make Electronics Possible, By Faiz Rahman, PhD

RESOURCES
Applied Materials Corporation | www.appliedmaterials.com
Lam Research Corporation | www.lamresearch.com

SOURCES
“Semiconductor Manufacturing,” Hitachi: https://www.hitachi-hightech.com/global/en/knowledge/semiconductor/room/manufacturing/
“6 crucial steps in semiconductor manufacturing,” ASML: https://www.asml.com/en/news/stories/2021/semiconductor-manufacturing-process-steps
“Past, Present, and Future of Moore’s Law, which Supports the Advancement of the Semiconductor Industry,” Telescope Magazine: https://www.tel.com/museum/magazine/report/202106/


26: TECHNOLOGY FEATURE: Cyber Security for IoT: On the Road to Canterbury, By Michael Lynes

RESOURCES
Ordr | ordr.net

REFERENCES
[1] ‘The Canterbury Tales’ – Chaucer, Geoffrey: https://en.wikipedia.org/wiki/The_Canterbury_Tales
[2] Numeric Encoding: https://en.wikipedia.org/wiki/Hexadecimal
[3] Donald Knuth: https://en.wikipedia.org/wiki/Donald_Knuth
[5] Hexspeak: https://en.wikipedia.org/wiki/Hexspeak
[6] Hexspeak Words: https://blog.idempotent.ca/2008/09/03/hexspeak-word-list/
[7] 1337 (LEET): https://en.wikipedia.org/wiki/Leet
[8] IoT Cyber Attacks: https://www.byos.io/blog/iot-attacks#:~:text=What%20is%20an%20IoT%20attack,control%20systems%2C%20and%20medical%20devices.
[9] Cloudflare: https://www.cloudflare.com/learning/security/glossary/iot-security/
[10] CheckPoint IoT: https://www.checkpoint.com/solutions/iot-security/
[11] MicroSoft Defender IoT Security Solutions: https://www.microsoft.com/en-us/security/business/solutions/iot-security
[12] Ordr CD 8.1 Video: https://youtu.be/B-FhoWGA0Kg

SOURCES
BotNet Detection: https://www.mdpi.com/1424-8220/22/10/3895
Cyber Security IoT: https://www.paloaltonetworks.com/cyberpedia/what-is-iot-security
IoT Analytics: https://iot-analytics.com/understanding-iot-security-part-1-iot-security-architecture/
Singapore Computer Society: Securing IoT – https://www.scs.org.sg/articles/iot-security-how-to-secure-your-devices
Institute for Defense and Business: https://www.idb.org/cybersecurity-and-the-Internet-of-things/
Cloudflare API Shield: https://blog.cloudflare.com/introducing-api-shield/?_gl=1*l6ewaz*_ga*MTg0MDg2MDc3Mi4xNzA4OTUxNTMw*_ga_SQCRB0TXZW*MTcwODk1MTUzMS4xLjEuMTcwODk1MjEyNy4wLjAuMA..
Palo Alto Networks: Securing the IoMT – https://start.paloaltonetworks.com/iomt-security-buyers-guide
Ordr Clinical Defender: https://Ordr.net/platform/clinical-defender/
AMRIS IoMT Security Playbook: https://www.armis.com/iomt-playbook/
Binariks Understanding IoMT Security: A Comprehensive Guide – https://binariks.com/blog/iomt-security-risks-best-practices/


32: DATASHEET: DSPs and DSCs, Time is of the Essence, By Sam Wallace

Analog Devices ADSP-21593/-21594/-SC592/-SC594: https://www.analog.com/media/en/technical-documentation/data-sheets/adsp-21593-21594-adsp-sc592-sc594.pdf
Analog Devices ADSP-SC596/-SC598: https://www.analog.com/media/en/technical-documentation/data-sheets/adsp-sc596-adsp-sc598.pdf

Analog Devices ADAU1797: https://www.analog.com/media/en/technical-documentation/data-sheets/adau1797.pdf

Asahi Kasei Microdevices AK7709: https://www.akm.com/content/dam/documents/products/audio-voice-processor/ak7709vq/ak7709vq-en-datasheet.pdf

Cirrus Logic CS49834/44: https://www.cirrus.com/products/cs49834-44/

Infinera WA’A 400G: https://www.infinera.com/products/waa-400g-dsp/

Marvell Orion: https://www.marvell.com/content/dam/marvell/en/public-collateral/dsp/marvell-coherent-dsp-orion-product-brief.pdf

Microchip Technology: https://ww1.microchip.com/downloads/aemDocuments/documents/MCU16/ProductDocuments/DataSheets/dsPIC33CK1024MP710-Family-Data-Sheet-DS70005496.pdf

Microchip Technology dsPIC33CK512MP608: https://www.mouser.com/datasheet/2/268/dsPIC33CK512MP608_Family_Data_Sheet_DS70005452B-2905050.pdf

NXP Semiconductors MC56F80XXX: https://www.nxp.com/docs/en/data-sheet/MC56F80XXX.pdf


36: The Magic Smoke Factory: Make Your Own SoM: A Modular Approach, By Joseph Corleto 

RESOURCES
Espressif Systems | www.espressif.com

REFERENCES
[1] Xilinx—“System-on-Modules (SoMs): How and Why to Use Them”: https://www.xilinx.com/products/som/what-is-a-som.html
[2] Raspberry Pi Pico Development Board (Raspberry Pi Pico WH RP2040)—DigiKey: https://www.digikey.com/en/products/detail/raspberry-pi/

Code and Supporting Files


42: START TO FINISH: ESD Protection, By Stuart Ball

RESOURCES
Littelfuse | www.littelfuse.com
Nexperia | www.nexperia.com
STMicroelectronics | www.st.com
Texas Instruments | www.ti.com

REFERENCES
[1] Stuart Ball, “Combating Electrical Noise: Keeping Your Circuits Quiet.” Circuit Cellar 403, February 2024.


46: EMBEDDED IN THIN SLICES: An Embedded Designer Looks at Mobile App Development, By Bob Japenga

RESOURCES
Dart | dart.dev
Expo | expo.dev
Flutter | flutter.dev
React | react.dev
React Native | reactnative.dev

REFERENCES
[1] NuPulse—“What is iVAS?”: https://www.nupulsecv.com/technology/
[2] Stack Overflow 2023 Developer Survey: https://survey.stackoverflow.co/2023/
[3] JQueryUI: https://jqueryui.com/

Code and Supporting Files


50: FROM THE BENCH: Lighting a Miniature Holiday Village: Using DotStar RGB LEDs with an ESP8266 & WEMOS-D1 Mini, By Jeff Bachiochi

RESOURCES
Espressif Systems | www.espressif.com
Wemos | www.wemos.cc

Code and Supporting Files


63: TECH THE FUTURE: The Future of Edge AI Vision: Edge AI Vision Kits: Elevating the Efficiency of Embedded Applications, By Maharajan Veerabahu

REFERENCES
[1] e-con Systems’ qSmartAI80_CUQ610: https://www.e-consystems.com/qualcomm-embedded-cameras/qcs610-ai-vision-kit-imx415.asp


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April (issue #405) Circuit Cellar

by Circuit Cellar Staff time to read: 4 min