Circuit Cellar is a monthly magazine (available in print and digital) covering the topics of embedded hardware, embedded software, electrical engineering, and computer applications.
Digital edition subscribers can log in now. If you aren’t a subscriber, you can subscribe here new digital subscribers have immediate access to the current issue. You can also purchase this issue PDF from our webshop.
Inside this month’s issue of Circuit Cellar magazine:


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 EVs: Why Real-Time Variable Gate-Drive Strength Enables SiC Traction Inverter Efficiency Improvements, By George Lakkas