HardLabs

Jamboard-L

jamdotjar·jam56s·pcb/jamboard-L.kicad_pcb

Jamboard-L PCB layout, top view — open source RP2040/RP2350 board by jamdotjar
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About the Jamboard-L PCB

Jamboard-L is an open source RP2040/RP2350 PCB design by jamdotjar, published on GitHub. It is a 2-layer board measuring 141.5 × 117.8 mm, with 117 components from 9 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 58 diodes, 28 switches, 28 capacitors, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

A fully custom 56-key column-staggered hotswap split keyboard

I'll replace this with a proper photo once it's built, but for now heres a quick render

This is my first custom keyboard design, and my second hardware project. It was designed with a few goals in mind: 1. to be functional ( not broken, hard to break ) 2. to be mine ( my own design, for my use case ) 3. to be simple ( simple to use, simple to build ) 4. to be something I'll actually use.

Jamboard-L, from the project README
From the project README

Main components on the Jamboard-L

Pico

Jamboard-L bill of materials (BOM)

117 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pico
U1
1
OLED_128x32
J1
1
RJ45
J2
27
SW_Push_45deg
S5, S6, S7, S8, S13, S14, S15, S16 +19
1
SW_Push_45deg
S53
28
D
D5, D6, D7, D8, D13, D14, D15, D16 +20
29
SK6812MINI
D60, D61, D62, D63, D69, D70, D71, D72 +21
1
1N4148
D115
28
C
C1, C2, C3, C4, C5, C6, C7, C8 +20

Jamboard-L design files

The KiCad project lives in the jamdotjar/jam56s repository on GitHub; these links point at the commit this page was built from.

Jamboard-L: common questions

What microcontroller does the Jamboard-L use?

The Jamboard-L is built around the Pico, from the RP2040/RP2350 family.

How big is the Jamboard-L PCB?

The Jamboard-L measures 141.5 × 117.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Jamboard-L?

117 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Jamboard-L design files?

From the jamdotjar/jam56s repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Jamboard-L design in my own project?

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

Can I test firmware for the Jamboard-L without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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