Circuit Cellar 431 June 2026 (PDF)

Issue #431
June 2026
5G (AND BEYOND) FOR DEVICES

4 DIY Vision Sensors Low-Cost Machine Vision Is Yours for the Hacking
By Dr. Torq

14 Analog Meets Digital
Part 6: Protection from Hazards
By Andrew Levido

24 Multitasking Microcontrollers What Could You Do with Multiple Simultaneous Programs?
By Wolfgang Matthes

35 TECHNOLOGY FEATURE 5G (and Beyond) for Devices 5G RedCap Brings a Middle Way for IoT Connectivity
By Curtis Franklin

DATASHEET 
40 ARM-Based SBCs Big Power from Single Boards SBCs with ARM Processors Aren't Limited Choices
By Curtis Franklin

44 Modern Embedded Insights How to Configure Zephyr RTOS A Practical Guide to West, Kconfig, and project.conf
By Jacob Beningo

49 The Sensor Edge MQTT Data Pipes Connecting IOT Services into a System By Brian Chee

54 Start to Finish Making Measurements What Are Accuracy and Resolution and How Do They Relate?
By Stuart Ball

TECH THE FUTURE
62 The Future of Synchronized Edge Devices Timing with White Rabbit Enabling Sub-Nanosecond Synchronization in Distributed Chips and Modules using the White Rabbit Protocol
By iWave’s Engineering Staff