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2 layers135 × 89 mmSCARAB, the printed circuit board in 3D

Licensed under the GNU General Public License.

Size
135 × 89 mm
Copper layers
2
Thickness
1.6 mm
Parts
13
Nets
99
Pads
176
Tracks, vias
330, 45
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
5 Oct 2025
Updated
24 Apr 2026

Overview

SCARAB is an open-source printed circuit board by stuart2307, from the stuart2307/SCARAB repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 135 × 89 mm with 13 parts on 99 nets, routed with 330 tracks and 45 vias.

Its parts include 4 connectors and 2 resistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.

README

README.md

The SCARAB

The Save and Cartridge Aid Requiring Adapter Boards

THE IDEA

As far as preservation goes, emphasis is placed on the software side of things. Tools exist to dump ROMs, and archive them, but there are few tools to diagnose the hardware. This is the niche the SCARAB aims to fill.

WHAT DOES IT DO?

It tests the pins of cartridges to ensure they work correctly. It validates the checksum of the internal ROM. It tests the save battery, if applicable, via a Save Data Retention test.

WHY DID YOU MAKE IT?

I've always loved retro gaming, and I am a collector of old hardware. As such, when given the opportunity to work with it as part of my Final Year Project, I settled on the SCARAB. I wanted to have some kind of tool to ensure my cartridges were operational.

Licensed under the GNU General Public License.

Parts

13
QtyValueFootprintReferences
25.1KResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR1, R2
2Conn_01x31Connector_PinSocket_2.54mm:PinSocket_1x31_P2.54mm_VerticalJ2, J5
15V to 3.3V BuckConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1Arduino_Mega2560_R3_ShieldPCM_arduino-library:Arduino_Mega2560_R3_ShieldA1
1USB-C BoardConnector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_VerticalJ3

The 7 most common of 13 parts.

More from stuart2307/SCARAB

4
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    NES Module

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    Licensed under the GNU General Public License.

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  • 2 layers67.5 × 93 mmSNES Module, the printed circuit board in 3D

    SNES Module

    stuart2307/SCARAB

    Licensed under the GNU General Public License.

    6 partsGPL-3.0

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Questions

How big is the SCARAB PCB?

It measures 135 × 89 mm and has 2 copper layers, 1.6 mm thick.

What parts does the SCARAB use?

13 parts. 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 SCARAB KiCad files?

From the stuart2307/SCARAB repository on GitHub, at the commit this page was made from: the board is Hardware/SCARAB/SCARAB.kicad_pcb and its schematic Hardware/GB GBA Module/GB GBA Module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the SCARAB design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).