HardLabs

K8split

Ckath·k8split·k8split-PCB/k8split.kicad_pcb

K8split PCB layout, top view — open source AVR/Arduino board by Ckath
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About the K8split PCB

K8split is an open source AVR/Arduino PCB design by Ckath, published on GitHub under the MIT license. It is a 2-layer board measuring 397.3 × 128.1 mm, with 212 components from 19 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. By type, the board carries 96 diodes, 7 capacitors, 5 connectors, 4 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

custom split keyboard for me by me

for the previous more scuffed and QMK version see rev0.1

K8split, from the project README
From the project README

Main components on the K8split

ATmega32U4-AU

K8split bill of materials (BOM)

212 components, 19 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U1
1
16MHz
Y1
5
Breakaway_Tabs
J3, J4, J7, J8, J9
83
MX-NoLED
MX1, MX2, MX7, MX8, MX9, MX10, MX11, MX12 +75
4
MX-NoLED
MX3, MX6, MX93, MX96
1
MX-NoLED
MX4
4
MX-NoLED
MX5, MX30, MX60, MX94
2
MX-NoLED
MX24, MX66
1
MX-NoLED
MX92
1
MX-NoLED
MX95
1
SW_Push
SW1
1
USB_A_SMT
USB1
96
SOD123
D1, D2, D3, D4, D5, D6, D7, D8 +88
2
22pF
C1, C2
1
1uF
C3
3
0.1uF
C4, C6, C15
1
10uF
C7
2
10k
R1, R25
2
22
R3, R4

K8split design files

The KiCad project lives in the Ckath/k8split repository on GitHub; these links point at the commit this page was built from.

K8split: common questions

What microcontroller does the K8split use?

The K8split is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the K8split PCB?

The K8split measures 397.3 × 128.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the K8split?

212 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the K8split design files?

From the Ckath/k8split repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the K8split design in my own project?

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

Can I test firmware for the K8split without the hardware?

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

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