Add-on dossier

Airship LED unlock path

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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Security Fest 2024 Feskekôrka Piano Badge documented solder option

hardware challenge mod

Hackerware documents replacing C1 and C2 with 22 pF capacitors, then adding SMD LEDs and resistors at D9-D13 and R8-R12 to play the CTF and unlock airship lights.

Badge: Security Fest 2024 Feskekôrka Piano Badge
Type: hardware challenge mod
Status: documented solder option
Compatibility: Security Fest 2024 Feskekôrka Piano Badge
Source: https://hackerware.io/secfest2024

Badge context

Related Resources

badge guide

Security Fest Piano CTF Badge

Hackerware guide for LED placement, CTF unlock solder steps, serial monitor settings, and mini-speaker solder points.

Badge: Security Fest 2024 Feskekôrka Piano Badge

badge writeup

The Feskekôrka Piano Badge

Hackster project writeup with story, bill of materials, assembly notes, serial menu, CTF design, photos, and credits.

Badge: Security Fest 2024 Feskekôrka Piano Badge

ctf context

Security Fest CTFtime profile

CTFtime profile for Security Fest; may require anti-abuse access controls.

Badge: Security Fest 2024 Feskekôrka Piano Badge

event site

Security Fest

Current public Security Fest site for conference-lineage context.

Badge: Security Fest 2024 Feskekôrka Piano Badge

Source trail

Evidence Sources

Hackerware · retrieved 2026-05-15

The Security Fest Piano CTF Badge

Primary source for serial monitor settings, speaker solder points, and CTF LED/solder instructions.

Badge: Security Fest 2024 Feskekôrka Piano Badge

Hackster.io · retrieved 2026-05-15

The Feskekôrka Piano Badge | Security Fest

Primary source for badge story, BOM, hardware, serial interface, CTF, production caveat, photos, and authors.

Badge: Security Fest 2024 Feskekôrka Piano Badge