HardLabs

Keeb rev1-mirror

celcius-plus-273·split-keyboard·keeb-rev1-mirror/keeb-rev1-mirror.kicad_pcb

Keeb rev1-mirror PCB layout, top view — open source AVR/Arduino board by celcius-plus-273

About the Keeb rev1-mirror PCB

Keeb rev1-mirror is an open source AVR/Arduino PCB design by celcius-plus-273, published on GitHub. It is a 2-layer board measuring 142.2 × 99.7 mm, with 65 components from 35 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. By type, the board carries 23 diodes, 22 switches, 9 capacitors, 8 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

Main components on the Keeb rev1-mirror

ATMEGA32U4

Keeb rev1-mirror bill of materials (BOM)

65 components, 35 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
Y
SW101
1
U
SW102
1
I
SW103
1
O
SW104
1
P
SW105
1
BSPC
SW106
1
H
SW107
1
J
SW108
1
K
SW109
1
L
SW110
1
;
SW111
1
'
SW112
1
N
SW113
1
M
SW114
1
,
SW115
1
.
SW116
Show 15 more
QtyPartRefs
1
/
SW117
1
RSHIFT
SW118
1
SPACE
SW119
1
ENTER
SW120
1
LAYER
SW121
21
D
D101, D102, D103, D104, D105, D106, D107, D108 +13
2
GREEN
D122, D123
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
5.1K
5.1k
R103, R104
2
22
R105, R106
2
1k
R107, R108

Keeb rev1-mirror 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 rev1-mirror: common questions

What microcontroller does the Keeb rev1-mirror use?

The Keeb rev1-mirror is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Keeb rev1-mirror PCB?

The Keeb rev1-mirror measures 142.2 × 99.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keeb rev1-mirror?

65 components, from 35 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 rev1-mirror 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 rev1-mirror 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 rev1-mirror 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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