HardLabs

Expansion skeleton

nojan1·project-wrass·eda/expansion_skeleton-v1/expansion_skeleton.kicad_pcb

Expansion skeleton PCB layout, top view — open source board by nojan1

About the Expansion skeleton PCB

Expansion skeleton is an open source PCB design by nojan1, published on GitHub. It is a 2-layer board measuring 182.4 × 99.1 mm, with 10 components from 3 distinct parts.

By type, the board carries 8 jumpers, 1 connector and 1 capacitor.

From the project

The purpose of Project Wrass is to develop the Wrass 1.

The purpose of Project Wrass is to develop the Wrass 1.

A 6502 based computer having the following specs.

W65C02 running at 2Mhz Bankable RAM giving a total of approx 300KB of usable memory * Expansion bus for up to 16 devices

The 16KB ROM is bankable using an external switch. This allows the computer to run "2 sets" of software.

The existing one is a simple homebrew "monitor" giving access to simple read, write and jump commands.

Expansion skeleton, from the project README
From the project README

Expansion skeleton bill of materials (BOM)

10 components, 3 distinct parts.

QtyPartRefs
1
Bus expansion
J2
8
SolderJumper_2_Open
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8
1
100nf
C18

Expansion skeleton design files

The KiCad project lives in the nojan1/project-wrass repository on GitHub; these links point at the commit this page was built from.

Expansion skeleton: common questions

How big is the Expansion skeleton PCB?

The Expansion skeleton measures 182.4 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Expansion skeleton?

10 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the Expansion skeleton design files?

From the nojan1/project-wrass repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Expansion skeleton design in my own project?

The repository has no license, so all rights stay with nojan1. Use it as a reference, and ask the author before reusing the design.

More boards in project-wrass