HardLabs

Zmk config-68

alan0ford·zmk-config-68-pcb·kicad/68_PCB_r01/68_PCB_r01.kicad_pcb

Zmk config-68 PCB layout, top view — open source Nordic nRF board by alan0ford

About the Zmk config-68 PCB

Zmk config-68 is an open source Nordic nRF PCB design by alan0ford, published on GitHub. It is a 2-layer board measuring 340.2 × 110 mm, with 142 components from 74 distinct parts.

Its main chip is the SUPERMINI_NRF52840, from the Nordic nRF family. By type, the board carries 73 switches, 68 diodes and 1 IC.

It belongs with the keyboards and iot & wireless designs in this gallery.

From the project

## PCB 68 keyboard PCB bluetooth mechanical keyboard.

Zmk config-68, from the project README
From the project README

Main components on the Zmk config-68

SUPERMINI_NRF52840

Zmk config-68 bill of materials (BOM)

142 components, 74 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SUPERMINI_NRF52840
SuperMini_NRF52840
U1
1
Esc
S1
1
1
S2
1
2
S3
1
3
S4
1
4
S5
1
5
S6
1
6
S7
1
7
S8
1
8
S9
1
9
S10
1
0
S11
1
-
S12
1
=
S13
1
BS
S14
1
PS
S15
1
PU
S16
1
Tab
S17
1
Q
S18
1
W
S19
Show 54 more
QtyPartRefs
1
E
S20
1
R
S21
1
T
S22
1
Y
S23
1
U
S24
1
I
S25
1
O
S26
1
P
S27
1
[
S28
1
]
S29
1
\
S30
1
Del
S31
1
PD
S32
1
CL
S33
1
A
S34
1
S
S35
1
D
S36
1
F
S37
1
G
S38
1
H
S39
1
J
S40
1
K
S41
1
L
S42
1
;
S43
1
'
S44
1
Ent
S45
1
ShL
S46
1
Z
S47
1
X
S48
1
C
S49
1
V
S50
1
B
S51
1
N
S52
1
M
S53
1
,
S54
1
.
S55
1
/
S56
1
ShR
S57
1
Up
S58
1
CtL
S59
1
Win
S60
1
AlL
S61
1
Spa
S62
1
Fn
S63
1
AlR
S64
1
CtR
S65
1
Lt
S66
1
Dw
S67
1
Rh
S68
1
2u
S69
2
2.25U
2.25u
S70, S73
1
2.75U
2.75u
S71
1
6.25U
6.25u
S72
68
Diode
D1, D2, D3, D4, D5, D6, D7, D8 +60

Zmk config-68 design files

The KiCad project lives in the alan0ford/zmk-config-68-pcb repository on GitHub; these links point at the commit this page was built from.

Zmk config-68: common questions

What microcontroller does the Zmk config-68 use?

The Zmk config-68 is built around the SUPERMINI_NRF52840, from the Nordic nRF family.

How big is the Zmk config-68 PCB?

The Zmk config-68 measures 340.2 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zmk config-68?

142 components, from 74 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 Zmk config-68 design files?

From the alan0ford/zmk-config-68-pcb repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Zmk config-68 design in my own project?

The repository has no license, so all rights stay with alan0ford. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Zmk config-68 without the hardware?

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

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