Hacktivity
A Hungarian IT-security conference with a public hardware-hacking badge guide, serial console workflow, CTF menu, UART jumpers, RF notes, and named developer credits.
Budapest · Hungary · 2018
A Hacktivity conference badge with USB mini connectivity, FT232R/FT232RL USB UART discovery, a cross-platform 9600 baud serial workflow, boot-time CTF app, UART jumper path to a root shell, and optional RF-module soldering notes.
Lifecycle
The guide documents a serial CTF menu with visual hardware debugging, reverse engineering, RF hacking, and crypto protection categories.
After removing the Omega shield and moving the jumpers from UART1 to UART0, the guide documents reconnecting at 115200 baud to see boot debug output and reach a root prompt.
The guide documents slow RF signal processing on GPIO19 and a faster-data wiring path from RF module DATA OUT to RX1.
The guide walks Linux users through dmesg and ttyUSB0, macOS users through ioreg/system_profiler and tty.usbserial, and Windows users through COM-port discovery before connecting at 9600 baud.
Operational history
This captures a practical beginner trap: the badge worked, but the serial workflow depended on reconnect timing and terminal setup.
For a learning badge this is useful lore rather than a production vulnerability: it shows how physical access and debug interfaces were deliberately part of the challenge surface.
The Hungary record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
The dossier intentionally avoids unsupported MCU/module claims beyond the public USB UART, Omega shield, jumpers, CTF, and RF wiring notes.