Circuit Cellar - June 2025

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4: The Edge Computing Paradigm - Advantages, Challenges, and Applications in the IoT,
By Pedro Bertoleti
10: Create an AI-Driven Smart Home Security System - Part 3—Face Recognition and Package Detection, By Dhairya Parikh
18: Zero Trust Architecture for the Internet of Things, By Steve Hanna
22: “Fish Sense” - A Monitoring and Control System for Aquariums, By Braden Trigg, Sebastien Robitaille, Kayleb Stetsko, and Eric Samer
30: TECHNOLOGY FEATURE: Telecommunications - Bandwidth and So Much More, By Curtis Franklin
36: DATASHEET: AC-DC Power Supplies - More Power — Smaller Footprints, By KC Prescott
40: MODERN EMBEDDED INSIGHTS: Improve Portability and Reusability in Embedded Systems with West, By Jacob Beningo
46: EMBEDDED IN THIN SLICES: An Embedded Designer Looks at Mobile App Development - Releasing Your Flutter App to the App Stores, By Bob Japenga
50: START TO FINISH: Crystal Calibration with GPS Redux, By Stuart Ball
62: TECH THE FUTURE: The Future of Graphical User Interfaces : Efficient GUI Design -Experience Flow with Microchip Graphics Suite (MGS), By Bill Li

The Edge Computing Paradigm

Advantages, Challenges, and Applications in the IoT

10+ mins

Create an AI-Driven Smart Home Security System

Part 3—Face Recognition and Package Detection

10+ mins

Zero Trust Architecture for the Internet of Things

Discover how Zero Trust Architecture is transforming IoT security, moving beyond outdated perimeter defenses to ensure every device, user, and service is authenticated and secure. Learn why adopting ZTA is essential for modern IoT design and how it can boost security, flexibility, and trust in your connected systems.

9 mins

"Fish Sense"

A Monitoring and Control System for Aquariums

10+ mins

Telecommunications

Bandwidth and So Much More

10+ mins

Datasheet: AC-DC Power Supplies

More Power — Smaller Footprints

1 min

Improve Portability and Reusability in Embedded Systems with West

Discover how West, a meta-tool from the Zephyr real-time operating system (RTOS) ecosystem, revolutionizes embedded software development by streamlining project management across multiple repositories. This article dives into practical applications of West for enhancing portability and reusability in complex embedded systems, offering engineers actionable insights to optimize their workflows.

9 mins

An Embedded Designer Looks at Mobile App Development

Releasing Your Flutter App to the App Stores

10 mins

Crystal Calibration with GPS Redux

Stuart revisits an article from 2020 with a different approach, exploring the calibration of microcontroller clock crystals using GPS technology, aimed at enhancing timing accuracy in various applications. Key findings highlight the importance of calibration for long-term timing precision, detailing methods to achieve significant improvements in accuracy.

10+ mins

The Future of Graphical User Interfaces

Efficient GUI Design Experience Flow with Microchip Graphics Suite (MGS)

5 mins

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Circuit Cellar Magazine Description:

Circuit Cellar magazine features engineering tutorials, detailed microcontroller-based projects, and embedded systems industry news for professional electrical engineers, EE/ECE academics, and highly skilled electronics enthusiasts. Since 1988, Circuit Cellar has featured projects and tutorials from the world's top engineers on subjects such as embedded development (e.g., prototyping and programming), signal processing (e.g., DSP chips and signal conditioning), programmable logic (e.g., FPGA projects), sensor systems (e.g., smart sensors and MEMS), 'Net-connected devices (e.g., IoT projects and protocol stacks), robotics (e.g., robotic systems and proximity sensing), and much more. Circuit Cellar is the ultimate resource for all of your electrical engineering-related needs.