2 layers86.4 × 64.8 mm
4 layers180.3 × 114.9 mm
Hardware having a blast
google/google-ctf5.1kGoogle CTF
- Size
- 180.3 × 114.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 102
- Nets
- 136
- Pads
- 430
- Tracks, vias
- 1,134, 152
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 27 Apr 2018
- Updated
- 22 Oct 2026
Overview
Hardware having a blast is an open-source printed circuit board by google, from the google/google-ctf repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 180.3 × 114.9 mm with 102 parts on 136 nets, routed with 1,134 tracks and 152 vias.
It is built around the CD4094BE, HCPL2731 and 74LS32SC, with the 74LVC2G86DP, NE555 and BC848 among its other parts. Its parts include 57 resistors, 14 ICs, 14 transistors, 8 connectors and 6 diodes.
Main components
7
CD4094BE
PDIP-16-55℃~+125℃ 1 3MHz 3V~18V 4000B 8 95ns@15V,50pF Serial-to-Parallel Tri-State DIP-16 Shift Registers ROHSTexas InstrumentsShift Registers
HCPL2731
PDIP-8-40℃~+85℃ 1.3V 2 2.5kV 400% 5V 60mA Darlington output structure PDIP-8 Transistor, Photovoltaic Output Optoisolators ROHSonsemiTransistor, Photovoltaic Output Optoisolators
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
74LVC2G86DP
TSSOP-8-40℃~+125℃ 1.65V~5.5V 2 2 3.6ns@5V,50pF 32mA 32mA 4uA 74LVC Series XOR Gate TSSOP-8 Logic Gates ROHSNexperiaLogic Gates
NE555
SOP-8-20℃~+70℃ 1 1.5mA 200mA 4.5V~15V Adjustable duty cycle oscillation、Reset function、Duty cycle stabilization SOP-8 555 Timers / Counters ROHSGRTimers / Counters
BC848
SOT-23SOT-23 Bipolar (BJT) ROHSTDDBipolar (BJT)
TDSR1050
DIP-100.39 1 12.6mmx9.45mmx6.4mm 185mW 7 Segment Common Anode Red DIP-10 LED Segment Displays ROHSVishay IntertechnologyLED Segment Displays
README
README.mdGoogle CTF
This repository lists most of the challenges used in the Google CTF since 2017, as well as most of the infrastructure that can be used to run them. IMPORTANT - The code in the 201x and 202x folders have unfixed security vulnerabilities. These are there on purpose, and running these on real production infrastructure is not safe.
Read more about the Google CTF here: https://security.googleblog.com/2017/06/announcing-google-capture-flag-2017.html
Note this is not an official Google product.
Parts
102| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R2, R10, R11, R12, R13, R17, R18, R19, R23, R24, R25, R26, R27, R28, R29 +8 |
| 16 | 1k | Resistor_SMD:R_0805_2012Metric | R14, R15, R16, R20, R21, R22, R31, R48, R49, R50, R51, R53, R54, R55, R56, R58 |
| 14 | BC848 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14 |
| 9 | 510 | Resistor_SMD:R_0805_2012Metric | R34, R35, R36, R37, R38, R39, R40, R41, R52 |
| 6 | 3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R42, R43, R44, R45, R46, R47 |
| 6 | CD4094B | Package_DIP:DIP-16_W7.62mm | U8, U9, U10, U11, U16, U17 |
| 6 | TDSR1050 | Package_DIP:DIP-10_W7.62mm | D1, D2, D3, D4, D5, D6 |
| 5 | HCPL2731 | Package_DIP:DIP-8_W7.62mm | U4, U5, U6, U7, U12 |
| 4 | Conn_01x01_Male | Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical | J5, J6, J7, J8 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R32, R33 |
| 1 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
| 1 | 10nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | 74LVC2G86 | Package_SO:SSOP-8_3.9x5.05mm_P1.27mm | U2 |
| 1 | Conn_01x02_Male | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x11 | Connector_PinSocket_2.54mm:PinSocket_1x11_P2.54mm_Vertical | J2 |
| 1 | Conn_02x10_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x10_P2.54mm_Vertical | J1 |
| 1 | NE555 | Package_DIP:DIP-8_W7.62mm | U3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
Questions
How big is the Hardware having a blast PCB?
It measures 180.3 × 114.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Hardware having a blast use?
102 parts, built around the CD4094BE, HCPL2731, 74LS32SC and 74LVC2G86DP. 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 Hardware having a blast KiCad files?
From the google/google-ctf repository on GitHub, at the commit this page was made from: the board is 2019/finals/hardware-having-a-blast/pcb/main.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hardware having a blast design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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