Circuit Cellar is a monthly magazine (available in print and digital) covering the topics of embedded hardware, embedded software, electrical engineering, and computer applications.
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Inside this month’s issue of Circuit Cellar magazine:
Issue #435
October 2026
Critical Infrastructure
4: Automated Test Equipment for 7400-Series Integrated Circuits – Use an RP2040 MCU to Find Manufacturing Flaws in Chips, By Michelle Yang
10: Optimizing Wireless Communications – Make the Right Choices for Best Performance, By Pedro Bertoleti
18: Building a Small, Autonomous Car – Two Raspberry Pi Picos Carry the Load, By Gebran Kastoun, Ruby Wu, and Sarah Zhong
34: TECHNOLOGY FEATURE: Control and Protect Critical Infrastructure – The Two Sides of OT Management and Cybersecurity, By Curtis Franklin
40: DATASHEET: System Testing Components – Put Systems Through Their Paces – Frameworks and Instruments for Ensuring Things Are Right, By Curtis Franklin
44: START TO FINISH: Standing Wave Ratio – Understanding Antenna Efficiency, By Stuart Ball
49: MODERN EMBEDDED INSIGHTS: Zephyr RTOS – Leveraging an Ecosystem of Drivers and Middleware, By Jacob Beningo
54: UNCHARTED HARDWARE: A Steampunk GPS Desk Clock – Building with a Tiny LCD Screen and GPS, By Rob “Dr. Torq” Reilly
63: TECH THE FUTURE: The Future of Temperature Monitoring – Refrigerator Failure Prevention -Temperature Monitoring Must Move Beyond the Clipboard, By Chris Potts