HardLabs

Keeb v1

celcius-plus-273·split-keyboard·keeb-v1/keeb-v1.kicad_pcb

Keeb v1 PCB layout, top view — open source AVR/Arduino board by celcius-plus-273

About the Keeb v1 PCB

Keeb v1 is an open source AVR/Arduino PCB design by celcius-plus-273, published on GitHub. It is a 2-layer board measuring 152.4 × 114.3 mm, with 79 components from 42 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. By type, the board carries 30 diodes, 29 switches, 9 capacitors, 8 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery, and the repository also holds 1 earlier revision of it.

Main components on the Keeb v1

ATMEGA32U4

Keeb v1 bill of materials (BOM)

79 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4
ATmega32U4
U101
1
16 MHz
Y101
1
USB_C_2.0
J101
1
reset_sw
S101
1
ESC
SW101
1
1
SW102
1
2
SW103
1
3
SW104
1
4
SW105
1
5
SW106
1
WIN
SW107
1
TAB
SW108
1
Q
SW109
1
W
SW110
1
E
SW111
1
R
SW112
1
T
SW113
1
FN
SW114
1
CTRL
SW115
1
A
SW116
Show 22 more
QtyPartRefs
1
S
SW117
1
D
SW118
1
F
SW119
1
G
SW120
1
SPACE
SW121
1
SHIFT
SW122
1
Z
SW123
1
X
SW124
1
C
SW125
1
V
SW126
1
B
SW127
1
ENTER
SW128
28
D
D101, D102, D103, D104, D105, D106, D107, D108 +20
2
GREEN
D129, D130
5
0.1UF
0.1uF
C101, C102, C103, C104, C109
1
4.7UF
4.7uF
C105
2
22PF
22pF
C106, C107
1
1UF
1uF
C108
2
10K
10k
R101, R102
2
1k
R103, R107
2
5.1K
5.1k
R104, R105
2
22
R106, R108

Keeb v1 design files

The KiCad project lives in the celcius-plus-273/split-keyboard repository on GitHub; these links point at the commit this page was built from.

Keeb v1: common questions

What microcontroller does the Keeb v1 use?

The Keeb v1 is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Keeb v1 PCB?

The Keeb v1 measures 152.4 × 114.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keeb v1?

79 components, from 42 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 Keeb v1 design files?

From the celcius-plus-273/split-keyboard 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 Keeb v1 design in my own project?

The repository has no license, so all rights stay with celcius-plus-273. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Keeb v1 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.

More boards in split-keyboard

Earlier revisions in the repo: keeb-rev1

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