Cerberus — A USB Watchdog

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Cerberus is my extension of USBvalve. Built on a Raspberry Pi Pico, it detects malicious USB devices to stop them before they reach the host

Glitchboi

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Shitty Prototype
11/06/2025 at 05:03 • 0 comments

After a while I finally have a "show and tell" version that works, also I updated the repo to include a lot of info an a to-do section for the future, I'll work in the software part.

I will attend to an event called BugCon with some pcb for the alpha and the overcurrent protection, if you want to meet me there!!!
V3 - First class
10/24/2025 at 18:59 • 0 comments

24-10-2025
As of today I have finished my first working prototype, I have implemented all functions of the USBValve and added the overvoltage detection and remediation. I based my design in the TPS2514A (Charging Port Controller) and TPD2E001 (Electrostatic Discharge Protection).

Because of the cost of the "specialty" hardware I design an module to reuse in case of need. I'll upload it later.

I wanted to add more functions to the firmware like Device ID detection, USB payloads debugging and more.

Also I'll have to add more hardware in the future like an EEPROM or flash exclusively for the file system so I can expand the firmware without bugs and missing space.