Circuit Cellar 374 September 2021 (PDF)

Circuit Cellar 374 September 2021 (PDF)

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Issue #374

September 2021
Technology for the Connected Car

  • 6: Getting Started with AI at the Edge: Using QuickFeather and SensiML, By Raul Alvarez-Torrico
  • 14: Hacking MCU Pins: Repurposing Peripherals, By Stuart Ball
  • 20: Building a COVID Test Drone (Part 2): Building the System, By Andrei Florian
  • 34: COM Boards Enable Smart Warehouse Robots: Automated Assistants, By Dan Demers
  • 38: Connected Cars Drive Needs for Advanced Chip Solutions: MCUs, SoCs and More, By Jeff Child
  • 46: Technologies Enable Rich Features for Wearables: Big Challenges for Small Devices, By Jeff Child 
  • 52: DATASHEET: Open-Spec SBCs: Focus on Low Cost, By Jeff Child
  • 56: PICKING UP MIXED SIGNALS: Build a CNC Pendant for Mach3: Controller Redesign, By Brian Millier
  • 63: EMBEDDED SYSTEM ESSENTIALS: AirTag Teardown and Security Analysis: Hacker vs. Tracker, By Colin O’Flynn
  • 68: FROM THE BENCH: How Gun-Style IR Thermometers Work (Part 1): Foreheads and Fahrenheits, By Jeff Bachiochi
  • 75: Product News
  • 78: Test Your EQ
  • 79: The Future of Secure Encryption: Embedded Tech Enables Blockchain and Crypto, By Paul Golata

Circuit Cellar is a monthly magazine (available in print and digital) covering the topics of embedded hardware, embedded software, electrical engineering, and computer applications. More information available at
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