Tag dossier
Badge records tagged with 555 Timer, across Australia, United States.
555-timer light-reactive soldering badge kit
CarolinaCon 12 included an easy-to-assemble electronic kit badge in the price of admission, with a 555 timer, LED, photoresistor, resistors, capacitor, AAA battery holder, wire, protoboard space, and Hardware Hacking Village support.
Middle-earth themed 555-timer LED soldering badge
BSides Canberra 2024's public ticketing page promised an electronic badge, and an attendee writeup describes the shipped badge as an orc-shaped soldering badge built around a 555 timer, LEDs, diode, resistor, capacitor, and 9V battery power.
Analog 555 and 4017 LAN cable tester
Kernelcon's 2024 [a]nalyze [i]nternet badge was an analog LAN cable-tester badge built without a microcontroller, using a 555 timer, 4017 decade counter, RJ45 path, diode network, head LEDs, and a detachable remote.
Post-event 555/74LS clock-generator badge with MIT source release
BSides Brisbane 2026's official prospectus offered electronic badge design/build for 500 delegates, Humanitix marked the July 4 event passed while listing conference-badge and VIP special-badge pickup, and public event updates named BLARGE as the electronic-badge supporter. Six days after the event, the `bsidesbrisbane/badge-2026` repository publicly documented the actual 2026 Clock Module: a photographed purple BSides Brisbane board in a 3D-printed case, a simple manually controllable clock generator made from 555 timers and 74LS-series logic, with committed Gerbers, BOM/CPL production data, an STL case file, and an MIT license.
Pre-event 555-timer analog Simple Add-On for DEF CON 34
HogFillet's live Uberflux listing calls this the HackThePlanet SAO for DEF CON 34. Its August 4, 2026 marketplace snapshot lists $24 and a seller state of 19 sold from a listed total of 23. A public DEF CON 34 maker self-submission by FakeBobby / HogFillet calls the same linked product HTP Graffiti and gives the same $24 price; the catalogue treats that exact product-URL match as a source-backed alternate listing name, not a second board. The maker describes a 555 timer clocking a ten-bit ripple counter whose outputs drive eight LEDs through the board's graffiti art, with an onboard trimmer controlling the flash rate. It explicitly says the board has no firmware and no I2C handshake, and says a separate button can be connected to the odd or even GPIO line of the DEF CON badge's SAO header. The listing announces Friday and Saturday Badge Life Booth pickup slots, with mailing or refund offered if a stated drop is missed. This is source-backed evidence for a pre-event independent analog SAO, not proof of final delivery, exact components or circuit values, host behavior, electrical safety, optical safety, conference authorization, admission, or reusable-image rights.