Circuit Cellar 399 October 2023 (PDF)

Issue #399 October 2023 Tiny Embedded Boards 4: Backend Web Development for MCU Clients: Part 1: Handling HTTP Requests in PHP, By Raul Alvarez-Torrico 12: zram in Embedded Linux: How to Maximize RAM in a Linux Environment, By Pedro Bertoleti 16: Evaluating EDATEC’s Line of Industrial Modules: Based On the Raspberry Pi Compute Module 4, By Brian Millier 26: Build a Solar-Powered Bobblehead: Using an Electromagnet to Drive the Bobble, By Dev Gualtieri 30: TECHNOLOGY FEATURE: Tiny Embedded Boards, By Michael Lynes 36: DATASHEET: MEMS Sensors: They Sense Just About Everything, By Sam Wallace 40: START TO FINISH: When Technology Goes Wrong: How Bad It Can Get, and What You Can Do About It, By Stuart Ball 46: EMBEDDED IN THIN SLICES: How Thin-Slicing Can Help Us: The Search for “Fists” in Embedded Systems, By Bob Japenga 50: FROM THE BENCH: Local Isolatio Using the Sun’s Energy: Part 2: Modbus Client, By Jeff Bachiochi 62: TECH THE FUTURE: The Future of EV Efficiency: Gate-Drive Strength in