HardLabs

BBC-USBSlim

Board-Folk·keys·BBC B/USB Slim/Kicad/BBC-USBSlim.kicad_pcb

BBC-USBSlim PCB layout, top view — open source board by Board-Folk

About the BBC-USBSlim PCB

BBC-USBSlim is an open source PCB design by Board-Folk, published on GitHub. It is a 2-layer board measuring 84.1 × 54.2 mm, with 44 components from 19 distinct parts.

Other key parts include the 74LS163, 74LS251, 74LS145D, 74LS30 and MT8816AF1. By type, the board carries 14 diodes, 14 resistors, 6 ICs, 6 capacitors, 2 connectors and 1 transistor.

It belongs with the keyboards and retro computing designs in this gallery.

From the project

Board Folk Retro Keyboards and Adapters

This is a surface mount board designed to fit inside the BBC's case, though currently does not work with the original keyboard connected. Uses the Seeduino XIAO. The XIAO does take a few seconds to boot and recognise the keyboard, it's not as quick as the Atmega version.

Gerbers and gerber zip file for production.

BBC-USBSlim, from the project README
From the project README

Main components on the BBC-USBSlim

74LS16374LS25174LS145D74LS30MT8816AF1XAIO Socket

BBC-USBSlim bill of materials (BOM)

44 components, 19 distinct parts.

QtyPartRefs
1
74LS163
U1
1
74LS251
U2
1
74LS145D
U3
1
74LS30
U4
1
MT8816AF1
U6
1
XAIO Socket
U7
1
BCV49
Q1
2
PL1
J1, J3
1
SW_DIP_x08
SW1
10
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +2
1
BREAK
D11
1
SHIFT
D12
1
CAPS
D13
1
MOTOR
D14
6
47nF
C1, C2, C3, C4, C5, C6
4
470R
R1, R2, R3, R5
1
10K
R4
1
1K
R6
8
2K2
R7, R8, R9, R10, R11, R12, R13, R14

BBC-USBSlim design files

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

BBC-USBSlim: common questions

How big is the BBC-USBSlim PCB?

The BBC-USBSlim measures 84.1 × 54.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BBC-USBSlim?

44 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the BBC-USBSlim design files?

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

Can I use the BBC-USBSlim design in my own project?

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

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