Openkey cps2
jwestfall69·openkey-cps2·hardware/openkey-cps2.kicad_pcb
About the Openkey cps2 PCB
Openkey cps2 is an open source AVR/Arduino PCB design by jwestfall69, published on GitHub under the Unlicense license. It is a 2-layer board measuring 27.5 × 28.3 mm, with 2 components from 2 distinct parts.
Its main chip is the ATtinyxx4, from the AVR/Arduino family. By type, the board carries 1 IC and 1 capacitor.
It belongs with the usb & debug tools designs in this gallery.
From the project
CPS2 Programmer
Overview Project Status Supported Games Hardware PCB Manufacturing BOM Assembly Programming Hardware Software Testing Installation 93646B-3 93646B-4 93646B-5 93646B-6 93646B-7 97691A-3 (all in one) * 97691A-4 (all in one)
NOTE: There is a typo on the silkscreen on hardware revision 2022-12-17. The bypass cap is listed as being 100uf, when it should be 100nf. This typo was fixed in hardware revision 2023-01-03, however the pictures below are all from the typo'd 2022-12-17 revision.

Main components on the Openkey cps2
Openkey cps2 bill of materials (BOM)
2 components, 2 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATtinyxx4 | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | 100nf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
Openkey cps2 design files
The KiCad project lives in the jwestfall69/openkey-cps2 repository on GitHub; these links point at the commit this page was built from.
Openkey cps2: common questions
What microcontroller does the Openkey cps2 use?
The Openkey cps2 is built around the ATtinyxx4, from the AVR/Arduino family.
How big is the Openkey cps2 PCB?
The Openkey cps2 measures 27.5 × 28.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Openkey cps2?
2 components, from 2 distinct parts. The full bill of materials is listed on this page.
Where can I download the Openkey cps2 design files?
From the jwestfall69/openkey-cps2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Openkey cps2 design in my own project?
Yes, under the terms of its Unlicense license, which jwestfall69 chose for the repository.
Can I test firmware for the Openkey cps2 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.
Similar boards
AVR/Arduino
Redox keyboard
mattdibi
162.2 × 126.5 mm77 parts2LMIT2.0kAVR/Arduino
ModuleV450
stuartpittaway
30 × 61.4 mm39 parts2LCC-BY-NC-4.01.1kAVR/Arduino
V4
stuartpittaway
30 × 50 mm38 parts2LCC-BY-NC-4.01.1kAVR/Arduino
Discipline
coseyfannitutti
304.9 × 122.8 mm170 parts2LCC-BY-NC-4.01.0kAVR/Arduino
Megadesk
gcormier
41.7 × 32.2 mm23 parts2LGPL-3.0818AVR/Arduino
Easyduino Atmega Nano
Hanqaqa
43.4 × 18 mm30 parts4LCERN-OHL-P-2.0746