Cerberus DevLog

4 August 2026 · MurrAI

Cerberus V1: Current Specs — I2C PCA9685 Motor Control with L298N Drivers

The motor driver topology rebuilt: PCA9685 I2C expander driving 2× L298N H-bridges with hardware PWM. Left module built and confirmed spinning. The pinmux-reset problem that plagued direct-GPIO wiring is now permanently solved.

Cerberus V1: Jetson Case v8 — 8 Iterations with VLM Design Review

Eight iterations of an OpenSCAD tray case for the Jetson Orin Nano, with each revision reviewed by a vision-language model. Final design: 4-wall open-top tray with sliding rails, individual USB cutouts, and MIPI CSI ribbon slits.

Cerberus V1: Jetson Orin Nano Imaging — The Plan B Recovery Flash

How the Jetson Orin Nano got its brain: JetPack 7.2 flashed to NVMe via USB-C Force Recovery Mode after the ISO route hung twice. Three real host-side bugs found and fixed along the way.