HardLabs

Openkey kabuki

jwestfall69·openkey-kabuki·hardware/openkey-kabuki.kicad_pcb

Openkey kabuki PCB layout, top view — open source AVR/Arduino board by jwestfall69

About the Openkey kabuki PCB

Openkey kabuki is an open source AVR/Arduino PCB design by jwestfall69, published on GitHub under the Unlicense license. It is a 2-layer board measuring 18.3 × 51.4 mm, with 10 components from 6 distinct parts.

Its main chip is the ATtinyxx4, from the AVR/Arduino family. Other key parts include the KABUKICPU. By type, the board carries 5 jumpers, 2 ICs, 1 connector, 1 switch and 1 capacitor.

It belongs with the usb & debug tools designs in this gallery.

From the project

Kabuki CPU key re-programmer

This project is providing the same functionality as Undamned's InfiniKey-Kabuki. The lack of supply is what prompted me to make openkey-kabuki. If they ever end up coming back in stock please consider purchasing those to support Undamned's work.

Details on how to program a kabuki CPU's key data can be found in Eduardo Cruz's write up and youtube video.

Details on what to program can be found in MAME's decryption code for the kabuki CPU.

Openkey kabuki, from the project README
From the project README

Main components on the Openkey kabuki

ATtinyxx4KABUKICPU

Openkey kabuki bill of materials (BOM)

10 components, 6 distinct parts.

QtyPartRefs
1
ATtinyxx4
U1
1
KABUKICPU
U2
1
UPDI Header
J1
5
SolderJumper_2_Open
JP1, JP2, JP3, JP4, JP5
1
Wurth Elektronik 416131160805
SW1
1
100nF
C1

Openkey kabuki design files

The KiCad project lives in the jwestfall69/openkey-kabuki repository on GitHub; these links point at the commit this page was built from.

Openkey kabuki: common questions

What microcontroller does the Openkey kabuki use?

The Openkey kabuki is built around the ATtinyxx4, from the AVR/Arduino family.

How big is the Openkey kabuki PCB?

The Openkey kabuki measures 18.3 × 51.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Openkey kabuki?

10 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Openkey kabuki design files?

From the jwestfall69/openkey-kabuki repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Openkey kabuki design in my own project?

Yes, under the terms of its Unlicense license, which jwestfall69 chose for the repository.

Can I test firmware for the Openkey kabuki without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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