HardLabs

BananaBoard

Cuprum77·BananaBoard

BananaBoard PCB layout, top view — open source board by Cuprum77

About the BananaBoard PCB

BananaBoard is an open source PCB design by Cuprum77, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 54.1 × 30.1 mm, with 8 components from 5 distinct parts.

By type, the board carries 4 capacitors, 2 connectors, 1 fuse and 1 jumper.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Adapter board for 4mm Banana plugs to breadboard

The design itself had to follow these requirements: Fit into the [BB830] breadboard popularized by Ben Eater Have footprints for at least 2 bypass capacitors per rail Onboard PTC fuse to avoid damage to the breadboard Bypass for PTC fuse if fuse is not desired * Adjustable pin header slots so you can adjust it to your breadboard

So far all those requirements have been implemented on the first prototype.

BananaBoard bill of materials (BOM)

8 components, 5 distinct parts.

QtyPartRefs
2
2.54 mm
J1, J2
1
1.1A Polyfuse
F1
1
Bypass
JP1
2
100n
C1, C2
2
1.5n
C3, C4

BananaBoard design files

The KiCad project lives in the Cuprum77/BananaBoard repository on GitHub; these links point at the commit this page was built from.

BananaBoard: common questions

How big is the BananaBoard PCB?

The BananaBoard measures 54.1 × 30.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BananaBoard?

8 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the BananaBoard design files?

From the Cuprum77/BananaBoard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the BananaBoard design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Cuprum77 chose for the repository.

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