Circuit Cellar 423 October 2025 (PDF)

Issue #423
October 2025
Embedded AI

4: Keeping Your Pi Safe -Part 1—Basic Encryption Functions with the TPM9670 Chip
By Gamal Labib

12: Synth Hero: Where Synth Legends Are Made - Creating a Retro Game Using a Raspberry Pi RP2040 MCU
By Chukwuemeka Adebi and Sergio Diaz

18: Mesh Networks - Reliable, Decentralized Communication Where Single Routers Fail
By Andrei Florian

24: MQTT in the Real World - Migrating Legacy Protocols to MQTT
By Ignacio Siccardi

30: TECHNOLOGY FEATURE: Embedded AI - AI Comes to the Operational Network’s Edge
By Curtis Franklin

46: DATASHEET: MEMS Sensors - MEMS Chips Bring Programs and Action Together
By Curtis Franklin

30: MODERN EMBEDDED INSIGHTS: Automating Metrics in

Modern Embedded Development
By Jacob Beningo

46: START TO FINISH:  Audio Power Amplifiers - Choosing an Audio Amplifier for Your Design
By Stuart Ball

52: EMBEDDED IN THIN SLICES: Binary Fixed-Point Arithmetic
By Bob Japenga

63: TECH THE FUTURE: The Future of Microsegmentation Cyber Defense - What Is OT Breach-Ready Cyber Defense?- Microsegmentation Is Strategic Defense Against Intrusion Damage
By Agnidipta Sarkar