TenguCon 3.0 · Japan · 2026

TenguCon 3.0 Hardware Badge

Planned ESP32-S3 LoRa badge with a QWERTY keyboard, colour display, and IR, sold at the door

A planned hardware badge for TenguCon 3.0, November 19-20, 2026 at Akihabara UDX in Tokyo. The official site lists an ESP32-S3 with a LoRa Ra-01SH module, Wi-Fi, Bluetooth, an IR blaster and receiver, a full QWERTY keyboard, game controls, a colour display, an SD card slot, and 10 addressable RGB LEDs. The Meetup event calls it a custom ESP32-based LoRa platform designed exclusively for the event. It is sold at the venue, cash only, in limited numbers, and is not included in admission.

TenguCon TenguSec Japan Tokyo Akihabara Electronic Badge ESP32-S3 LoRa Ra-01SH QWERTY Keyboard Colour Display IR Wi-Fi Bluetooth SD Card RGB LEDs Paid Badge Pre-Event CTF Prize East Asia Asia No Image

EventTenguCon 3.0

SeriesTenguCon

LocationUDX Conference, Akihabara UDX South Wing 6F, Chiyoda City, Tokyo

CountryJapan

People

Authors & Credits

event organizer and badge publisher

TenguSec

Tokyo grassroots hacker community that presents TenguCon and announces the badge. The official pages do not name the badge designer.

Source

Why It Mattered

It adds a first Japanese grassroots hacker-conference badge from TenguSec to the catalogue, announced by the organizers a week before the event with a full feature list, while no design files, firmware, or designer credit are public yet.

Hardware

The official badge section lists an ESP32-S3, an IR blaster and receiver, a LoRa Ra-01SH module, a full QWERTY keyboard, Bluetooth, Wi-Fi, an SD card slot, game controls, 10 fully addressable RGB LEDs, and a colour display. Badges come in several colours; the pictured Black Badge is the scavenger hunt/CTF prize. No schematic, BOM, display model, battery, or power specification is published.

Software & Apps

No firmware, apps, or repository is published. The organizers describe the badge as functional hacking hardware rather than a keepsake, but no reviewed source describes its LoRa protocol, apps, or any badge challenge.

Lore

TenguCon is run by TenguSec, a Tokyo grassroots hacker community founded in 2022. The third edition takes the theme Human resistance in the age of machine authority, with 13 research talks, five villages and activities, a CTF whose awards close day two, and a Triforce keynote by Joe Grand (Kingpin), Iceman, and YTCracker. Admission is 4,500 yen in advance through Meetup or 3,000 yen at the door. The badge costs 12,000 yen with admission or 10,000 yen on its own, cash only at the venue while supplies last.

Lifecycle

Add-ons & Upgrades

paid badge sale announced pre-event

Cash-only door sale

The badge is sold at the venue only, cash only, at 12,000 yen as a badge and admission bundle or 10,000 yen for the badge alone, in strictly limited quantities while supplies last.

Compatibility: TenguCon 3.0, November 19-20, 2026.

Source

prize badge variant announced pre-event

Black Badge scavenger hunt/CTF prize

The official site says badges come in several colours and that the Black Badge it pictures is reserved for the winner of the scavenger hunt/CTF, which all attendees can enter. The timetable closes day two with CTF awards.

Compatibility: TenguCon 3.0 Hardware Badge; standard attendee badges are not pictured.

Source

Operational history

Issues & Camp Impact

missing rights-cleared image note

No TenguCon 3.0 badge image is published. The official site shows front and back photos of the Black Badge, but neither the site nor its media page gives a reuse licence or permission.

The record links the official badge section and stays image-free until a photo or render with a reusable licence or explicit permission, attribution, and processing notes is available.

Confidence: local project policy
Status: needs licensed original replacement
Timeframe: current catalogue build
Source note: TenguCon 3.0 official site and media page, retrieved 2026-11-12.

paid limited distribution note

Admission does not include the badge. It is a separate cash-only purchase at the venue in strictly limited quantities, so not every attendee will have one.

The record treats the badge as an optional paid item, not an attendee-wide handout.

Confidence: official pages
Status: documented limitation
Timeframe: TenguCon 3.0
Source note: TenguCon 3.0 official site and Meetup event, retrieved 2026-11-12.

pre-event badge caveat note

The badge is announced on the official site and Meetup event a week before the conference. No schematic, BOM, firmware, repository, designer credit, or production count is public, and the standard attendee colours are not pictured.

The record lists the announced features only and does not claim shipped hardware, firmware behaviour, quantities, or who designed the badge.

Confidence: official pages for a future event
Status: planned
Timeframe: pre-event check on 2026-11-12 before the November 19-20, 2026 event
Source note: TenguCon 3.0 official site, Meetup event, and media page, retrieved 2026-11-12.

Resources

TenguCon 3.0 badge section official badge page · Official badge section: feature list, front and back photos of the Black Badge prize variant, and the note that standard attendee badges come in other colours. The photos carry no reuse licence and are linked only. TenguCon 3.0 media information official media page · Official press and creator page with the organizer contact, a consent-based filming policy that asks to check before capturing badges, and interview requests for village hosts and badge creators. TenguCon 3.0 official site official event page · Official TenguCon 3.0 site with the November 19-20, 2026 dates, the Akihabara UDX venue, the timetable, villages, sponsors, and ticket and badge prices. TenguCon 3.0 on Meetup official registration page · TenguSec's Meetup event for registration, in English and Japanese, with the advance and door ticket prices and the two cash-only badge options.

Sources

TenguSec: TenguCon 3.0 — November 19–20, 2026 · Tokyo Retrieved 2026-11-12 · Primary official source (Last-Modified November 10, 2026). The badge section says the TenguCon 3.0 badge brings a full keyboard, game controls, and a colour display together with wireless and infrared connectivity, and lists ESP32-S3, IR blaster and receiver, LoRa Ra-01SH module, full QWERTY keyboard, Bluetooth, Wi-Fi, SD card slot, game controls, 10 fully addressable RGB LEDs, and colour display. It says the pictured Black Badge is reserved for the scavenger hunt/CTF winner and standard attendee badges come in other colours. The registration section lists 4,500 yen advance and 3,000 yen door admission, 12,000 yen badge plus admission and 10,000 yen badge only, both cash at the door, and says the limited-edition ESP32 LoRa attendee badges are sold at the venue while supplies last. TenguSec: Media information — TenguCon 3.0 Retrieved 2026-11-12 · Official media page confirming the dates, the UDX Conference venue on the sixth floor of the South Wing, and TenguSec as organizer. It offers interviews with village hosts and badge creators but names neither, and gives no image licence. TenguSec (Meetup): TenguCon 3.0 (Meetup event) Retrieved 2026-11-12 · Official registration page for the November 19-20, 2026 event at Akihabara UDX. Its English and Japanese text introduce the TenguCon 3.0 Hardware Badge as a fully featured, custom-built ESP32-based LoRa platform designed exclusively for the event and functional hacking hardware rather than a keepsake, sold at the door, cash only, at 12,000 yen with admission or 10,000 yen alone, in strictly limited quantities, first come, first served.