HardLabs

Cyclops

westfoxtrot·cyclops_pcb

Cyclops PCB layout, top view — open source AVR/Arduino board by westfoxtrot

About the Cyclops PCB

Cyclops is an open source AVR/Arduino PCB design by westfoxtrot, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 311.4 × 93.5 mm, with 152 components from 29 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. By type, the board carries 68 relays, 67 diodes, 8 capacitors, 4 resistors, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Custom 66% Mechanical Keyboard PCB for AEK2 Keycaps

It employs a 66-key layout and the pcb is confirmed compatible with the following cases:

Main components on the Cyclops

ATMEGA32U4

Cyclops bill of materials (BOM)

152 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4
U1
1
CRYSTAL_3225
16mhz
X1
1
USB_mini_micro_B
J1
1
MISO
J2
1
ESC
K1
1
1
K2
47
KEYSW
K3, K4, K5, K6, K7, K8, K9, K10 +39
1
backspace
K14
1
tab
K15
1
Lock
K28
1
Shift
K41
5
Shift
K53, K64, K65, K66, K67
1
Ctrl
K54
2
alt
K55, K59
1
opt
K56
1
space
K57
1
cmd
K58
1
ctrl
K60
1
enter
K61
1
backspace
K62
Show 9 more
QtyPartRefs
1
Shift
K64-2
1
SW_Push
SW1
67
D
D1, D2, D3, D4, D5, D6, D7, D8 +59
4
0.1U
0.1u
C1, C2, C3, C4
1
4.7U
4.7u
C5
2
22P
22p
C6, C7
1
1u
C8
2
22
R1, R2
2
10K
R3, R4

Cyclops design files

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

Cyclops: common questions

What microcontroller does the Cyclops use?

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

How big is the Cyclops PCB?

The Cyclops measures 311.4 × 93.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cyclops?

152 components, from 29 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 Cyclops design files?

From the westfoxtrot/cyclops_pcb repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Cyclops design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which westfoxtrot chose for the repository.

Can I test firmware for the Cyclops 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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