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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

[1] Tutorial on SSH to BeagleBone Black over USB:

[2] Getting started with Beagleboard:

[3] Heartbeat trigger code:

[4] PocketBeagle SiP documentation:

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

PocketBeagle official website:

Article: “Linux e o suporte à device tree – Parte 2”, by Sergio Prado:

Octavo Systems |

Code and Supporting Files

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

[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:

Code and Supporting Files

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

[1] Amazon AWS free subscription:

[2] NodeMCU Arduino setup:

[3] DHT Library:

[4] ArduinoJSON:

[5] GitHub Repository:

NodeMCU |

Code and Supporting Files

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

[1] Precedence Research on the wearable technology market:

[2] Travelers Insurance: How Companies can help reduce risk from Wearables –

[3] Fear of Wearables: “Between Fear and Astonishment: The Rhetorics of Wearable Technology”

Wearable Tech:

Science Direct: Wearable Technology –

Wearable Technology Applications:

Smart Clothing Framework for Health Monitoring Applications:

Abilify Mycite |
McLear |
Neosensory |
Ouraring |
SmartSole |
Softmatter |
Upright |

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


Avent RASynBoard:

Digi ConnectCore MP1:

Infineon AIROC CYW43022:

Laird Connectivity Sterling LWB+:

NXP K32W1480:

Renesas RYZ024A:

Reyax RYS8839: STMicroelectronics ST87M01:

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

[1] Toshiba-TLCS-900-L-Resources Repository:

[2] chipwhisperer-target-cw308t Repository:

[3] PyToshLoad Repository:

[4] Embedded Systems Essentials Repository:

[5] Open-source ChipWhisperer-Jupyter repository:

NewAE Technology Inc. |

Code and Supporting Files

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

[1] AN2099 Infineon Application note describing IIR filter implementation:

CY8CKit-059 PSoC5LP development board:

Analog Devices LTC1059 Universal Filter Block:

T.I. INA121 Instrumentation Amplifier:

Recom RAC05-05SK/C14 Power module in IEC320 case:

CUI Inc. |
Recom Power |

Code and Supporting Files

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

[1] NTP Pool Project:

Arduino |
Debian |
Espressif Systems |
Heltec Automation |

Code and Supporting Files

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

[1] Grand View Research report:

[2] Mercedez-Benz digitized cockpits:

[3] Audi digitized cockpits:

[4] Tesla digitized cockpits:

[5] Qualcomm to supply GM with cockpit chips for next gen vehicles:

[6] Semiconductor shortage: How the automotive industry can succeed:

[7] Tesla rewrote its own software to survive the chip shortage:

[8] Reducing driving error accidents:,human%20error%2C%20not%20an%20accident

The Qt Company |

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May (issue #394) Circuit Cellar

by Circuit Cellar Staff time to read: 4 min