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Left

TheBlckbird·custom-split-keyboard·left/left.kicad_pcb

Left PCB layout, top view — open source RP2040/RP2350 board by TheBlckbird
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About the Left PCB

Left is an open source RP2040/RP2350 PCB design by TheBlckbird, published on GitHub under the MIT license. It is a 2-layer board measuring 173.8 × 173.8 mm, with 66 components from 5 distinct parts.

Its main chip is the Raspberry_Pi_Pico, from the RP2040/RP2350 family. By type, the board carries 32 switches, 32 diodes, 1 IC and 1 connector.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

PCB for my custom split keyboard

⚠️ Disclaimer! WIP ⚠️ This PCB won't work in its current form!

The PCBs for my custom split keyboard are available in this repository.

The PCB is made for hotswap switches compatible with the Choc v1 or v2 footprint. The first unique part about this is that it only uses one MCU and connects the two sides with a miniHDMI cable. The other unique thing is that it has arrow keys.

Left, from the project README
From the project README

Main components on the Left

Raspberry_Pi_Pico

Left bill of materials (BOM)

66 components, 5 distinct parts.

QtyPartRefs
1
Raspberry_Pi_Pico
U1
1
HDMI_C_1.4
J1
30
Keyswitch
S1, S2, S3, S4, S5, S6, S7, S8 +22
2
Keyswitch
S31, S32
32
Diode
D1, D2, D3, D4, D5, D6, D7, D8 +24

Left design files

The KiCad project lives in the TheBlckbird/custom-split-keyboard repository on GitHub; these links point at the commit this page was built from.

Left: common questions

What microcontroller does the Left use?

The Left is built around the Raspberry_Pi_Pico, from the RP2040/RP2350 family.

How big is the Left PCB?

The Left measures 173.8 × 173.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Left?

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

Where can I download the Left design files?

From the TheBlckbird/custom-split-keyboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Left design in my own project?

Yes, under the terms of its MIT license, which TheBlckbird chose for the repository.

Can I test firmware for the Left 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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