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Otterlinear keyboard

Jana-Marie·otterlinear-keyboard·otterlinear-keyboard/otterlinear-keyboard.kicad_pcb

Otterlinear keyboard PCB layout, top view — open source STM32 board by Jana-Marie
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About the Otterlinear keyboard PCB

Otterlinear keyboard is an open source STM32 PCB design by Jana-Marie, published on GitHub. It is a 2-layer board measuring 214 × 84 mm, with 136 components from 10 distinct parts.

Its main chip is the STM32F042K6UX, from the STM32 family. Other key parts include the XC6206PXXXMR. By type, the board carries 61 diodes, 60 switches, 6 capacitors, 2 ICs, 2 resistors and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

Just a smol ortholinear keyboard desgined by an otter for otters.

Just a smol ortholinear keyboard desgined by an otter for otters. It is built upon an STM32f042, Kailh Choc switches, featuring a Type-C jack and a wooden base. The keyboard measures only 214x84x17mm and has a smol, slim and chic design to fulfill its purpose as tv keyboard for my living room :3

The board itself can be ordered from JLCPCB with all parts populated (if available..), keycaps can be acquired e.g. via AliExpress. The design was focused both on a clean and minimal appearance, and a clean board layout with just the necessary parts.

Otterlinear keyboard, from the project README
From the project README

Main components on the Otterlinear keyboard

STM32F042K6UXXC6206PXXXMR

Otterlinear keyboard bill of materials (BOM)

136 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F042K6UX
STM32F042K6Ux
U1
1
XC6206PXXXMR
XC6206PxxxMR
U2
1
C393939
USB
J1
4
9774020360
H1, H2, H3, H4
60
PG1353
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +52
60
1N4148WS
D1, D2, D3, D4, D5, D6, D7, D8 +52
1
SP0502BAHT
D61
3
100N
100n
C1, C5, C6
3
1u
C2, C3, C4
2
5K1
5k1
R1, R2

Otterlinear keyboard design files

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

Otterlinear keyboard: common questions

What microcontroller does the Otterlinear keyboard use?

The Otterlinear keyboard is built around the STM32F042K6UX, from the STM32 family.

How big is the Otterlinear keyboard PCB?

The Otterlinear keyboard measures 214 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Otterlinear keyboard?

136 components, from 10 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 Otterlinear keyboard design files?

From the Jana-Marie/otterlinear-keyboard repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Otterlinear keyboard design in my own project?

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

Can I test firmware for the Otterlinear keyboard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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