HardLabs

SplitKeeb

rah1236·SplitKeeb·SplitKeebKiCad/kb.kicad_pcb

SplitKeeb PCB layout, top view — open source board by rah1236

About the SplitKeeb PCB

SplitKeeb is an open source PCB design by rah1236, published on GitHub. It is a 2-layer board measuring 355.6 × 102.2 mm, with 130 components from 55 distinct parts.

Other key parts include the u and Q. By type, the board carries 63 diodes, 5 resistors, 4 connectors, 2 modules, 2 crystals and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

A Keyboard I designed and built from scratch in my Senior year of Highschool

This is a split keyboard design, and uses I2C to communicate over a TRRS audio cable (4 poles).

The parts list is as follows: 62 of any Cherry MX style key Switch 62 1N4148 Zener Diodes 2 identical Resistors from a range of 2.2k Ohms to 10k Ohms (4.7k recommended) 2 Arduino Pro Micros 2 PJ-320A TRRS Female Jacks 1 TRRS Male to Male wire 10 M3 x 8mm Bolts 10 M3 nuts

SplitKeeb, from the project README
From the project README

Main components on the SplitKeeb

uQ

SplitKeeb bill of materials (BOM)

130 components, 55 distinct parts.

QtyPartRefs
1
u
U1
1
Q
A1
1
m
M1
1
Q
Q1
1
Q
X1
1
y
Y1
2
AudioJack4
J1, J3
1
j
J2
1
p
P1
3
Q
Alt1, Ctrl1, Windows1
1
b
B2
1
|
Bar1
1
Back
Bckspce1
1
Q
Caps1
1
;
Colon1
10
Q
E1, Five1, Four1, G1, Space1, Two1, V1, W1 +2
1
8
Eight1
1
enter
Enter1
1
=+
EqualsSign1
1
Q
F1
Show 35 more
QtyPartRefs
1
h
H1
1
i
I1
1
k
K1
1
<
LeftAligator1
1
[
LeftBracket1
1
Menu
MenuButton1
1
n
N1
1
9
Nine1
1
o
O1
1
1
One1
1
?
QuestionMark1
1
"
QuoteSign1
1
>
RightAlligaotr1
1
RAlt
RightAlt1
1
]
RightBracket1
1
RCTRL
RightCtrl1
1
RShift
RightShift1
1
RSpace
RightSpace1
1
RWindows
RightWindows1
1
Q
S1
1
7
Seven1
1
Q
Shift1
1
6
Six1
1
Q
T1
1
esc
Tab1
1
_
UnderScore1
1
0
Zero1
1
esc
esc1
62
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +54
1
Q
D28
1
l
L1
1
Q
C1
2
2.2k
R1, R4
2
10 k
R2, R5
1
Q
R3

SplitKeeb design files

The KiCad project lives in the rah1236/SplitKeeb repository on GitHub; these links point at the commit this page was built from.

SplitKeeb: common questions

How big is the SplitKeeb PCB?

The SplitKeeb measures 355.6 × 102.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SplitKeeb?

130 components, from 55 distinct parts. The full bill of materials is listed on this page.

Where can I download the SplitKeeb design files?

From the rah1236/SplitKeeb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the SplitKeeb design in my own project?

The repository has no license, so all rights stay with rah1236. Use it as a reference, and ask the author before reusing the design.

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