DEF CON 34 · United States · 2026
Current $80 RP2354 breadboard-prototyping badge; fulfillment unverified
Tw0nkus's live Uberflux listing calls Breadbadge a badge by day and a breadboard-prototyping tool by night. It identifies an RP2354A main MCU, INA3221 I2C voltage/current/power monitor, ST7789 SPI display, six WS2812 RGB LEDs, navigation joystick/back button, UART/UPDI/I2C/5 V/3.3 V/debug breakouts, and a Defcon34 drop. The same current listing displayed $80, five remaining, and four sold. Badge.Life's current DC34 Village schedule independently lists Bread Badge by Tw0nkus in its Friday 1:30 PM badge-drop slot. This is enough evidence for a distinct, independently offered pre-event electronic badge associated with DEF CON 34, not proof that DEF CON issued it, that it is an admission credential, that inventory/payment/fulfillment figures are final, that a drop or handoff occurred, or that marketplace images are cleared for reuse.
People
The Uberflux Breadbadge listing and public @Tw0nkus profile name Tw0nkus as the maker. This preserves a marketplace-handle maker credit only; it does not identify a real-world person, assign sole hardware/firmware/art/manufacturing authorship, establish DEF CON affiliation, prove fulfillment, or grant image-reuse authority.
SourceBreadbadge contributes a source-backed developer-tool badge rather than a decorative artifact alone: the current maker description joins a microcontroller/display/LED platform with a breadboard-compatible prototyping surface, target-programming interface, I2C tools, and power sensing. The record preserves those direct claims while keeping current market inventory, target-device operations, engineering safety, source availability, and conference association within their evidence bounds.
The maker lists an RP2354A, INA3221 voltage/current/power monitor on I2C, ST7789 SPI display, six WS2812 RGB LEDs, a navigation joystick and back button, and a breadboard-compatible prototyping platform. Listed breakouts are UART; UPDI selected by a DPDT slide switch that shares the UART port; I2C; 5 V; 3.3 V; an internal debug header for the onboard RP2350; and external debug. The sources do not publish a schematic, PCB revision, BOM, exact breakout pinout, monitor wiring/calibration, LED/display part configuration, breadboard dimensions, voltage/current limits, regulator/protection design, power-source/charging details, assembly/test record, safe target-programming procedure, or final physical-unit parity.
The listing advertises display and LED animations, UPDI ping/erase/flash functions that can load raw HEX files from an internal filesystem, I2C tools, and voltage/current/power sensing. It does not publish firmware source or binary, version, build/toolchain/dependency record, target compatibility list, flash/erase safeguards, data integrity model, recovery or rollback path, security review, license, support terms, or evidence that a particular event unit uses these capabilities. This catalogue retains the high-level maker feature list without reproducing a programming workflow.
The maker frames the object as Breadbadge: a badge by day and a breadboard prototyping tool by night. Its direct Uberflux page marks a Defcon34 drop, and Badge.Life's current public village schedule names Bread Badge by Tw0nkus. Those sources establish an independent maker and event-associated handoff context only; they do not establish a DEF CON organizer relationship, ticket inclusion, a fixed drop location or allocation, price permanence, a completed sale, or a final attendee experience.
Source-backed hardware metadata
Structured technical signals seeded from public badge documentation, repositories, schematics, firmware notes, or event evidence. These fields are designed for filtering, API use, repair planning, preservation, and future Companion Gear matching.
Tw0nkus's current Breadbadge listing identifies an RP2354A, display, RGB LEDs, controls, breakout interfaces, and a Defcon34 drop; stock and fulfillment remain time-sensitive and unverified.
Signal sourceThe live maker listing names an RP2354A main MCU. The taxonomy records the RP2350 family without asserting a final PCB revision, firmware version, or per-unit population.
Signal sourceThe maker lists an INA3221 I2C power monitor and an I2C breakout/tools surface, but does not publish the bus pinout, voltage levels, pullups, compatibility matrix, or safe external-device use.
Signal sourceThe listing identifies a UART breakout shared with UPDI through a DPDT slide switch, but does not establish pinout, levels, target support, safety, or concurrent-use behavior.
Signal sourceThe maker lists an ST7789 SPI display but does not identify its panel variant, resolution, wiring, brightness, power budget, or final-unit configuration.
Signal sourceThe maker lists six WS2812 RGB LEDs but does not establish LED package, current budget, brightness behavior, or a final production configuration.
Signal sourceRepair, preservation, and legal lab context
Parts, tools, and supplies that match this badge's documented hardware, protocols, or preservation needs. These are category-level recommendations, not compatibility guarantees.
Display modules and related parts for repair and preservation planning.
This badge has a documented display signal. Matched technical signals: ST7789 TFT.
Vendor link · selected for technical relevance
Headers, sockets, and connector supplies for display repair or replacement work.
Display headers and connectors are useful for repair and preservation planning. Matched technical signals: ST7789 TFT.
Vendor link · selected for technical relevance
Debug probes for ARM/RISC-V badge development, recovery, and documentation.
Debug probes can support authorized recovery, firmware work, and documentation for microcontroller badges. Matched technical signals: RP2350.
Vendor link · selected for technical relevance
USB serial adapters for logs, recovery, and firmware documentation workflows.
This badge has a documented microcontroller platform where serial logs or flashing workflows may be relevant. Matched technical signals: RP2350.
Vendor link · selected for technical relevance
Anti-static bags and storage supplies for preserving loose badge PCBs and sensitive components.
This is documented as an electronic or hardware artifact where anti-static storage can support preservation. Matched technical signals: Electronic badge.
Vendor link · selected for technical relevance
Lifecycle
The live Tw0nkus listing displayed an $80 price, five remaining, four sold, and a Defcon34 drop label. Badge.Life separately schedules Bread Badge by Tw0nkus in its current Friday DC34 village programme. These are time-sensitive availability and schedule statements, not proof of a completed payment, final stock count, production run, exact drop location/time, pickup, delivery, refund, replacement, or post-event outcome.
SourceThe listing advertises display/LED animations, UPDI ping/erase/flash functions with raw HEX loading from internal storage, I2C tools, and voltage/current/power sensing. It documents claimed capability at a high level, not an audited firmware build, target-safe programming procedure, access-control model, data integrity guarantee, complete toolchain, user guide, release, or support commitment.
SourceThe maker lists an RP2354A, INA3221 I2C voltage/current/power monitor, ST7789 SPI display, six WS2812 RGB LEDs, navigation joystick/back button, and breadboard-compatible prototyping platform. The listing does not establish schematic/BOM/revision, component configuration, monitor calibration, exact breadboard fit, power/current limits, test results, or safe operation.
SourceThe listing names UART, UPDI selected by a DPDT slide switch sharing the UART port, I2C, 5 V, 3.3 V, internal RP2350 debug, and external debug breakouts. It does not publish a pin map, connector type, voltage/current envelopes, target matrix, switching isolation, debugger implementation, electrical protection, or safe integration instructions.
SourceOperational history
The catalogue preserves a time-specific maker listing and schedule association without turning it into a fulfillment report or guaranteed handoff.
The catalogue records the published high-level feature surface without supplying programming steps, treating it as an audited firmware release, promising safe behavior on attached devices, or reusing marketplace media.
The dossier remains technically useful without becoming a reference design, external-target compatibility assurance, power specification, or hardware safety endorsement.
The record preserves a real independent BadgeLife event association without presenting Breadbadge as an official DEF CON credential or access item.
The United States record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.