Badge Clinic 2

In this second installment of the Monero Village Badge Clinic, hardware designer Michael Schloh von Bennewitz (msvb) delves further into electronic badge hacking, firmware customization, and physical hardware security design [00:04]. Michael uses a multi-camera bench microscope setup to guide attendees through reading and programming custom badge EEPROMs, modifying memory registers, and writing custom metadata fields [10:26].

Michael examines the open-source hardware repositories supporting the DEF CON Safe Mode badge ecosystem, showcasing projects including the Monero Rising Iron Triangle and the "Bush of Being" inter-village badge [30:20]. A significant focus of the clinic is physical and RF privacy engineering: Michael demonstrates an innovative hardware circuit featuring a physical momentary push switch that disconnects the badge's NFC antenna when not being depressed by the user [39:56]. This mechanism ensures that unauthorized external RFID readers cannot surreptitiously skim badge data or track attendee movements without explicit physical consent.

The session concludes with demonstrations of custom village PCB aesthetics, silkscreen solder mask colors, and multi-village protocol interoperability [49:22]. Michael provides troubleshooting advice for viewers experiencing flashing issues, sharing tips on UART serial debugging, logic analyzer verification, and hardware design best practices [58:34].

(AI summary — Gemini Flash)