HardLabs

Keyboard/Trackball Combo - Key IO Expanders

blueOkiris·ps-ktc·pcb/keys/keys.kicad_pcb

Keyboard/Trackball Combo - Key IO Expanders PCB layout, top view — open source board by blueOkiris

About the Keyboard/Trackball Combo - Key IO Expanders PCB

Keyboard/Trackball Combo - Key IO Expanders is an open source PCB design by blueOkiris, published on GitHub. It is a 2-layer board measuring 33.2 × 108 mm, with 8 components from 4 distinct parts.

It belongs with the keyboards designs in this gallery.

From the project

A keyboard and trackball in one, for efficient computer usage.

A keyboard and trackball in one, for efficient computer usage.

Like the PS-OHK, the PS-KTC attempts to provide an efficiently laid out keyboard which doesn't require moving your hands back and forth from the mouse.

Unlike the PS-OHK, it accomplishes this while allowing for typing quickly via using both hands. This is done by placing a trackball in the middle of the keyboard!

Keyboard/Trackball Combo - Key IO Expanders bill of materials (BOM)

8 components, 4 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
PCA9505DGGY
~
IC_IOEXP1, IC_IOEXP2
1
Conn_01x04_Pin
JI2C1
4
Conn_01x20_Pin
JKEYSL1, JKEYSL2, JKEYSR1, JKEYSR2
1
1-10k
R_ADDR1

Keyboard/Trackball Combo - Key IO Expanders design files

The KiCad project lives in the blueOkiris/ps-ktc repository on GitHub; these links point at the commit this page was built from.

Keyboard/Trackball Combo - Key IO Expanders: common questions

How big is the Keyboard/Trackball Combo - Key IO Expanders PCB?

The Keyboard/Trackball Combo - Key IO Expanders measures 33.2 × 108 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard/Trackball Combo - Key IO Expanders?

8 components, from 4 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 Keyboard/Trackball Combo - Key IO Expanders design files?

From the blueOkiris/ps-ktc 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 Keyboard/Trackball Combo - Key IO Expanders design in my own project?

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

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