leHACK 2026 · France · 2026
Open ESP32-S3 capacitive light-up workshop badge
leHACK's official 2026 workshop schedule and the French National Cybersecurity Agency's leHACK listing present Badge Hackropole as a novice-accessible workshop in which participants assemble a capacitive light-up badge, solder a microcontroller and eight SMD LEDs, and program preconfigured WLED firmware. FCSC-FR's public hackropole-badge repository supplies the PCB source, assembly instructions, firmware binaries/configuration, and per-file licensing. The programme lists ten 55-minute workshop sessions across June 26-27, but the source trail does not prove final attendance, completed builds, or a conference-wide handout.
People
The repository's REUSE metadata assigns 2025 Hackropole copyright text to the hardware JPEG, KiCad files, and related documented assets, while leLAB names Hackropole among its material-support partners. This does not establish a sole hardware, firmware, workshop, or event-author role.
SourceleHACK publishes the workshop schedule and leLAB context for Badge Hackropole. This identifies event-programme publication, not a claim of technical authorship, fabrication, or individual workshop delivery.
SourceANSSI's official page says its experts ran the two-part leHACK workshop and publishes the Badge Hackropole schedule/description. This is not an individual badge-design or image-reuse attribution.
SourceThe public FCSC-FR repository publishes the Hackropole badge source files and links the hardware, assembly, firmware, and licensing documentation. This identifies a source-publisher role, not individual design authorship.
SourceIt adds a current French open-hardware badge record with a rare end-to-end public trail: official event and public-agency scheduling, KiCad production sources, a component-level assembly guide, WLED configuration, and explicit CC BY 4.0 source-image provenance. The dossier keeps that workshop-created device distinct from leHACK's separate general conference badge pickup workflow.
The public FCSC-FR repository supplies KiCad 9 PCB sources and recommends a two-layer, 1.6 mm blue FR-4 board. Its assembly baseline is one Waveshare ESP32-S3-Zero, also called ESP32-S3 Mini, without pin headers plus eight 5050-SMD WS2812B LEDs. The firmware guide maps the eight external LEDs to GPIO 2, the ESP32-S3 board's built-in LED to GPIO 21, eight capacitive pillar controls to GPIO 1, 3, 4, 5, 7, 8, 9, and 10, and the rooster-crest touch control to GPIO 6; GP14 and GP15 remain exposed pads for user modification. Public instructions describe a buildable design, not one verified uniform event-issued configuration, enclosure, lanyard, power-bank, sensor, or finished-unit population.
The repository provides WLED bootloader, partition, and firmware binaries plus an override configuration that its guide matches to WLED v0.15.5. It documents ESP32-S3 bootloader flashing with esptool, a WLED Wi-Fi access-point onboarding flow, a web configuration interface, default yellow lighting, a crest touch control that toggles light, and a first-pillar control that cycles effects. Builders can also rebuild the firmware from the public WLED source and Hackropole override. No source establishes an event-only application, CTF, backend, attendee account model, final flashed-state ledger, or post-event support/update service.
Badge Hackropole was scheduled inside leHACK 2026's new leLAB Hardware Village, whose workshop model used on-site first-come registration and a maximum of ten people per workshop session. ANSSI's official listing describes ten 55-minute Badge Hackropole sessions across June 26 and 27. leHACK's practical information separately says attendees collected a general conference badge at reception with a QR code; the sources never equate that credential with the Hackropole hardware workshop project.
Lifecycle
The source guide aligns the distributed firmware with WLED v0.15.5, documents ESP32-S3 bootloader flashing with esptool, a WLED Wi-Fi access-point onboarding flow, a web interface, and touch controls for lighting and effects.
SourceleLAB identifies Badge Hackropole soldering as an introductory activity with no technical prerequisite; workshop sign-up was on site, first come first served, and groups were limited to ten people maximum.
SourceThe WLED guide maps eight capacitive pillar controls and a rooster-crest touch control, and exposes GP14/GP15 pads for user modifications such as 3.3 V I2C sensors or an I2S microphone.
SourceThe assembly guide recommends one Waveshare ESP32-S3-Zero without pin headers and eight WS2812B LEDs in 5050-SMD packages as the baseline working board.
SourceANSSI's official leHACK listing schedules ten 55-minute Badge Hackropole workshop sessions: five on June 26 and five on June 27.
SourceOperational history
The record remains a workshop-made electronic artifact rather than an unsupported claim about leHACK admission, identity, access control, or universal badge allocation.
Readers can reproduce the documented public design without mistaking one source configuration for a verified event-wide production, security, or support state.
The catalogue records the public hands-on workflow while avoiding a claim that all configurations are safe, supplied, tested, supported, or appropriate for every builder.
The compendium can preserve a concrete workshop artifact and buildable design without treating a schedule or a public repository as proof that every listed slot ran or that any specific person received and completed a badge.