

疑似時限爆弾解除競技
- Size
- 100 × 88.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 77
- Pads
- 239
- Tracks, vias
- 300, 38
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 14 Mar 2020
- Updated
- 16 Aug 2026
Overview
Gen2 is an open-source printed circuit board by Alignof, from the Alignof/Juggernaut repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 88.9 mm with 41 parts on 77 nets, routed with 300 tracks and 38 vias.
It is built around the ESP32-DEVKITC-VE, 2SC1815 and 74HC595. Its parts include 5 transistors, 4 connectors, 3 diodes, 2 ICs and 2 switches. It belongs with the ESP32 boards of this library.
Main components
3ESP32-DEVKITC-VE
-- WiFi Modules ROHSEspressif SystemsWiFi Modules2SC1815
SOT-23-55℃~+150℃ 1 NPN 100nA 130 150mA 200mW 250mV 50V 5V 80MHz NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
README
README.mdJuggernaut

Juggernaut は与えられた回路図とプログラムを読み解き,規定内の操作を行うことで時限爆弾型の「装置」を停止させる(解除する)競技です.
解除すべき「装置」とその回路図,書き込まれているプログラムが渡され,その内容を読み解きながらワイヤを切ったりボタンを押したり傾けたりして時間内に「装置」を停止させることを目指します.
作問者には回路構成力とプログラムを柔軟に書く力が,解除する側には回路図やデータシートを読む力とプログラムを素早く間違いなく解読する力が求められ,教育面での効果が期待できます.
解除するまでの時間を競う競技型や,お互いに装置を作って解除しあってワイワイするイベント型を想定しています.
競技規則
regulation.mdを参照.
関連リポジトリ
運営などに便利なツールを用意しました.
Juggernaut_typst
運営に提出する仕様書(giver から solver に渡される問題文兼取説)の typst 版テンプレートです.
開催履歴
- 2020/12/19: SECCON2020 Contest of Contest 発表
- 2021/10/16: 第1回 SECCONCON 「Juggernaut #000」
- 2023/12/23: Juggernaut #001 @浅草橋ヒューリックホール
- 2024/09/14: Juggernaut #002 @Deep Tech CORE SAPPORO
- 2025/11/12-13: International Cybersecurity Challenge 小中学生向けワークショップ
Author
2020 10.31
Norimasa TAKANA
Homepage: https://n.takana.dev/
Github : https://github.com/Alignof/
Twitter : https://twitter.com/_Alignof
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 270 | Resistor_SMD:R_0805_2012Metric | R_US1, R_US2, R_US3, R_US4, R_US5, R_US6, R_US7, R_US13, R_US14, R_US15 |
| 7 | 10k | Resistor_SMD:R_0805_2012Metric | R_US8, R_US9, R_US10, R_US11, R_US12, R_US16, R_US17 |
| 5 | 2SC1815 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | hole_lower_left, hole_lower_right, hole_upper_left, hole_upper_right |
| 2 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | primary1, secondary1 |
| 2 | Conn_01x02_Socket | Connector_JST:JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J1, J3 |
| 1 | Conn_02x20_Row_Letter_Last | MyPartsLibrary:PinSocket_2x20_P2.54mm_20a_38a | J4 |
| 1 | Conn_02x20_Row_Letter_Last | MyPartsLibrary:PinSocket_2x20_P2.54mm_1a-19a | J2 |
| 1 | ESP32-DevKitC | MyPartsLibrary:ESP32-DevKitC | U1 |
| 1 | GREEN | LED_THT:LED_D5.0mm | LED1 |
| 1 | HDB06LFPN | Buzzer_Beeper:Buzzer_15x7.5RM7.6 | BZ1 |
| 1 | LOGO | Library:QR_juggernaut | G*** |
| 1 | OSL_40391_LRA | MyPartsLibrary:OSL_40391_LRA | U2 |
| 1 | RED | LED_THT:LED_D5.0mm | LED3 |
| 1 | YELLOW | LED_THT:LED_D5.0mm | LED2 |
| 1 | select | Button_Switch_SMD:SW_SPST_PTS645 | SW1 |
| 1 | start | Button_Switch_THT:SW_PUSH-12mm_Wuerth-430476085716 | SW2 |
More from Alignof/Juggernaut
1- 2 layers100 × 88.9 mm

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Questions
How big is the Gen2 PCB?
It measures 100 × 88.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Gen2 use?
41 parts, built around the ESP32-DEVKITC-VE, 2SC1815 and 74HC595. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Gen2 KiCad files?
From the Alignof/Juggernaut repository on GitHub, at the commit this page was made from: the board is archive/circuit/gen2/gen2.kicad_pcb and its schematic archive/circuit/gen1/gen1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Gen2 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).