Cyber City Circuits
The official 2024 badge page states assembly was done by Cyber City Circuits in Augusta, Georgia.
SourceKernelcon 2024 · United States · 2024
Kernelcon 2024 [a]nalyze [i]nternet Badge
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.
EventKernelcon 2024
SeriesKernelcon
LocationHilton Omaha Downtown, Omaha, Nebraska
CountryUnited States
People
Authors & Credits
Tyler Rosonke / zonksec
The official 2024 badge page credits zonksec / Tyler Rosonke with design and prototyping.
SourceWhy It Mattered
It preserves a modern conference badge that made basic network-cable testing, diode logic, and timer modification the attendee interaction instead of hiding all behavior behind firmware.
Hardware
The official badge site documents a 555 timer in astable configuration producing roughly a 1 Hz pulse, a 4017 decade counter selecting cable lines, RJ45 jack outputs, ground-return diode behavior, head and remote LED banks, and a remote end that connects cable lines together.
Software & Apps
There is no badge firmware or microcontroller in the official description. Activities instead covered making the remote removable, making and testing cables, reading continuity/miswire/short behavior, and modifying the 555 timing circuit by changing R1, R2, and C2.
Lore
The official site says the badge was designed and prototyped by zonksec / Tyler Rosonke and assembled by Cyber City Circuits. It also links 2024 to the prior analog 2023 badge and to a CTF challenge related to the 555 timing circuit.
Lifecycle
Add-ons & Upgrades
detachable interaction
historical
LAN cable tester remote
The badge tested cable continuity and ordering through head and remote LED banks while activities showed how to make the remote removable.
Source
hardware-hacking activity
source-backed
555 timing modification activity
The activity guide identified R1, R2, and C2 as the 555 astable timing parts and encouraged attendees to change oscillation speed.
SourceOperational history
Issues & Camp Impact
missing rights-cleared image
note
No Kernelcon 2024 cable-tester badge image is published because source-site images and schematics do not yet have complete local reuse provenance.
The record remains source-backed and image-free under the project image policy.
- Confidence
- local project policy
- Status
- open
- Timeframe
- current catalogue build
- Source note
- badge.gallery image policy and Kernelcon 2024 badge site.
no-firmware classification
note
The official about page says the badge kept things old school with no microcontrollers, using a 555 timer and 4017 counter instead.
The catalogue models the badge as analog electronic hardware and does not infer firmware or software challenges.
- Confidence
- official badge page
- Status
- documented
- Timeframe
- 2024 badge
- Source note
- Kernelcon 2024 badge about page.
Resources
Kernelcon 2024 Eventzilla page
official event registration · Official registration source for Hilton Omaha Downtown location, April 2-5 event dates, April 4-5 main conference dates, and event context.
Kernelcon 2024 badge activities
activity guide · Official activity guide for removable remote, cable making/testing, 555-timer modification, and timing-circuit CTF context.
Kernelcon 2024 badge site
official badge page · Official badge site for the [a]nalyze [i]nternet cable-tester badge.
Sources
Kernelcon badge site: [a]nalyze [i]nternet badge about page
Retrieved 2026-05-15 · Primary source for 555 timer, 4017 decade counter, RJ45 cable-testing behavior, diode network, remote LEDs, manufacturing credits, and no-microcontroller framing.
Kernelcon badge site: [a]nalyze [i]nternet badge activities
Retrieved 2026-05-15 · Primary activity source for cable testing, remote handling, 555 astable circuit modification, R1/R2/C2 values, and CTF timing-circuit context.