FREE-WILi
FREE-WILi publishes the badge page, documentation, firmware repository, and Build-A-Badge customization software.
SourceICS Village at DEF CON 33 · United States · 2025
ICS Village DC33 FREE-WILi Badge
RP2350A ICS security badge tool
The ICS Village Badge for DEF CON 33 was a FREE-WILi and Intrepid Control Systems sponsored hands-on industrial-control-security badge tool with RP2350A control, ESP32-C6 Wi-Fi, sensors, GUI support, USB API, WASM scripting, and Build-A-Badge customization software.
SeriesICS Village
LocationLas Vegas Convention Center, Las Vegas, Nevada
CountryUnited States
Image Provenance
- Asset
- optimized WebP from official upstream repository raster render
- Status
- licensed official upstream raster render
- Source
- assets/ics_village_badge.png
- License
- MIT License
- Attribution
- FreeWili / build_a_badge repository contributors
- Notes
- Original 2400x3000 PNG upstream raster render downloaded from the public freewili/build_a_badge repository and preserved in Public/images/source. The Build-A-Badge README embeds the MIT License text for the project and documents the app as the DEF CON badge customizer; this is an official upstream badge render, not generated content, a placeholder, a screenshot, or a copied vendor webpage image. The published badge.gallery delivery file is an optimized WebP generated from the rights-cleared local derivative/source with metadata stripped, WebP quality 82, and a maximum side cap of 1600 pixels when the source is larger; upstream source URL, license, and attribution remain unchanged.
People
Authors & Credits
Intrepid Control Systems
FREE-WILi documentation identifies Intrepid Control Systems as a sponsor helping keep access to the badge affordable.
SourceKyle Irving
FREE-WILi documentation credits Detroit artist Kyle Irving with the full-color PCB artwork.
SourceICS Village
The badge is framed by FREE-WILi as an ICS Village DEF CON 33 badge tool.
SourceWhy It Mattered
It adds another DEF CON village badge line to the worldwide compendium and shows industrial-control badge culture moving beyond pure PCB art into a portable sensor, API, scripting, and training platform for physical and environmental ICS exercises.
Hardware
FREE-WILi documentation identifies a Raspberry Pi RP2350A core with SRAM and flash, ESP32-C6 Wi-Fi, BME688 gas/pressure/humidity/temperature sensor, MQ-3 alcohol sensor, XYZ position sensor, infrared receive/transmit, 320x240 full-color screen, five buttons, five full-color LEDs, speaker, real-time clock, USB terminal, I2C expansion configured as DEF CON SAO, 1000 mA lithium-ion battery with integrated charger, and full-color PCB artwork by Detroit artist Kyle Irving.
Software & Apps
The public docs describe FREE-WILi GUI support, ESP32 WebSocket interface to the GUI, fuzzer, USB serial console API, WASM scripting examples for C/C++, Rust, Zig, and TinyGo, host Python API, FAT filesystem, ROM sounds and images for user apps, numbers-to-speech, standard USB bootloader updates, and RP2350 custom-code paths for C/C++, MicroPython, or CircuitPython. The public firmware repository distributes DEF CON 33 badge UF2 firmware, and the Build-A-Badge repository documents cross-platform customization for images, LED patterns, names, and WASM uploads.
Lore
The badge was framed as an evolution from FREE-WILi's previous Whale Tail badge: where Whale Tail focused on digital protocols, the ICS Village DEF CON 33 badge emphasized physical and environmental exploitation through sensors, GUI/API access, and badge-personalization workflows.
Lifecycle
Add-ons & Upgrades
add-on connector
source-backed
I2C SAO expansion
The badge documentation identifies I2C expansion configured as DEF CON SAO plus USB terminal access for I2C and SAO sensor interfacing.
Source
customization software
released
Build-A-Badge customizer
The Build-A-Badge software lets users choose images, configure LED patterns, set a badge name, program the device, and upload WASM applications.
Source
hardware platform
source-backed
RP2350A and ESP32-C6 badge core
FREE-WILi documents the badge around a Raspberry Pi RP2350A controller and ESP32-C6 Wi-Fi interface, with standard USB bootloader update support.
Source
sensor payload
source-backed
Environmental ICS sensor surface
The badge exposes BME688 gas/pressure/humidity/temperature sensing, MQ-3 alcohol sensing, XYZ position, infrared receive/transmit, RTC, buttons, LEDs, speaker, and full-color display for ICS exercises.
Source
software interface
documented
USB API, GUI, and WASM scripting
Official docs describe FREE-WILi GUI support, ESP32 WebSocket interface, USB serial console API, WASM scripting examples, host Python API, FAT filesystem, and WASM control of device features.
SourceOperational history
Issues & Camp Impact
documentation mutability caveat
note
FREE-WILi documentation says it may be updated without notice and includes a liability disclaimer, so this record cites both the live docs and the GitHub markdown source for traceability.
Hardware and software claims stay tied to the current public documentation snapshot and should be revisited if FREE-WILi revises the page or publishes design files.
- Confidence
- primary documentation disclaimer
- Status
- documented
- Timeframe
- current catalogue build
- Source note
- FREE-WILi ICS Village Badge documentation disclaimer and FreeWili_WebDocs markdown source.
image provenance upgrade
note
The ICS Village DC33 visual uses FREE-WILi's `build_a_badge` repository `assets/ics_village_badge.png` upstream raster render under the repository README's MIT License text.
The record now has a rights-cleared official upstream render with source URL, license, attribution, source-original retention, and WebP processing notes while avoiding generated or placeholder imagery.
- Confidence
- repository README license text and exact raster source
- Status
- licensed official upstream raster render applied
- Timeframe
- current catalogue build
- Source note
- freewili/build_a_badge repository README, assets/ics_village_badge.png, and badge.gallery image policy.
repository-license caveat
note
The public firmware repository remains license-metadata-limited in this pass, while the Build-A-Badge repository README embeds MIT License text used only for the selected upstream badge render and customization-app evidence.
The catalogue records public firmware and customization surfaces conservatively while allowing the specifically reviewed Build-A-Badge render to carry explicit MIT provenance.
- Confidence
- public repository metadata plus README review
- Status
- documented
- Timeframe
- current catalogue build
- Source note
- freewili/freewili-firmware and freewili/build_a_badge repository review.
Resources
Build-A-Badge repository
customization software and image source · Public repository for the DEF CON 33 badge customization application covering images, LED patterns, badge names, programming workflow, WASM upload support, README-embedded MIT license text, and the selected `assets/ics_village_badge.png` official upstream render.
FREE-WILi Python host API
host API · Public host API repository linked from the badge documentation for PC-side control and automation.
FREE-WILi firmware repository
firmware release · Public firmware repository distributing DEF CON 33 badge UF2 firmware and firmware-update entry points; GitHub API currently reports no repository license.
ICS Village
village page · Official village context source for the industrial-control-security event track represented by the DEF CON 33 badge tool.
ICS Village Badge documentation
hardware and software docs · FREE-WILi documentation source for hardware, firmware, GUI, WASM, firmware update, tutorial, and Build-A-Badge details.
ICS Village Badge product page
badge page · FREE-WILi badge page source for DEF CON 33 badge framing, sponsor context, RP2350A, ESP32-C6, sensors, GUI, USB API, and SAO feature summary.
Sources
FREE-WILi: ICS Village Badge for Defcon 33 with AI power
Retrieved 2026-05-15 · Badge-page source proving the ICS Village Badge for DEF CON 33, FREE-WILi/Intrepid framing, RP2350A platform, ESP32-C6, gas and alcohol sensors, GUI support, USB terminal, SAO expansion, battery, and firmware update path.
FREE-WILi Docs: ICS Village Badge for DEFCON 33 with AI Power
Retrieved 2026-05-15 · Primary documentation source for the purchased ICS Village badge tool, sponsorship, hardware summary, software features, tutorial videos, firmware update pointer, and Build-A-Badge section.
GitHub / FREE-WILi: freewili/freewili-firmware
Retrieved 2026-05-15 · Public firmware repository source for the DEF CON 33 badge UF2 firmware and firmware-update trail; repository metadata did not expose a license during this pass.
GitHub / FREE-WILi: freewili/build_a_badge
Retrieved 2026-05-15 · Public Build-A-Badge repository source for the DEF CON 33 customization software, LED/image/name configuration workflow, cross-platform app framing, WASM upload support, README-embedded MIT license text, and `assets/ics_village_badge.png` image provenance.
GitHub / FREE-WILi: freewili/freewili-python
Retrieved 2026-05-15 · Host API repository linked from the official badge documentation for PC-side badge control and automation.
GitHub / FreeWili_WebDocs: icsvillage-badge-defcon33.md
Retrieved 2026-05-15 · Markdown source for the FREE-WILi documentation page, used to pin the exact prose behind hardware, software, sponsor, and image-rights decisions.