HardLabs

Keyboard matrix

morgobongo·Mini_Synth·kicad/keyboard_matrix/keyboard_matrix.kicad_pcb

Keyboard matrix PCB layout, top view — open source board by morgobongo

About the Keyboard matrix PCB

Keyboard matrix is an open source PCB design by morgobongo, published on GitHub under the Custom license license. It is a 2-layer board measuring 175.3 × 28.6 mm, with 21 components from 2 distinct parts.

By type, the board carries 20 switches and 1 connector.

It belongs with the audio and keyboards designs in this gallery.

From the project

1. One sent to obtain information 2. Jean Louise “Scout” Finch, of Atticus Finch 3. The first synth from Oskitone to venture into the big ol' world of microcontrollers

1. One sent to obtain information 2. Jean Louise “Scout” Finch, of Atticus Finch 3. The first synth from Oskitone to venture into the big ol' world of microcontrollers

- Beginner-friendly: All components are through-hole (instead of surface mount) for easier soldering, and full assembly takes about 45min. Standalone, battery-powered, doesn't need a computer or external speakers to work. Fun! - 3D-Printable: Besides the electronics and nuts and bolts, all parts are 3D-printed. And with a total width of ~160mm (about 6.3"), the Scout can fit on smaller, "Mini" (18x18x18cm) size print beds. -…

Keyboard matrix, from the project README
From the project README

Keyboard matrix bill of materials (BOM)

21 components, 2 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Conn_01x09
J1
20
SPST
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +12

Keyboard matrix design files

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

Keyboard matrix: common questions

How big is the Keyboard matrix PCB?

The Keyboard matrix measures 175.3 × 28.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard matrix?

21 components, from 2 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 matrix design files?

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

Can I use the Keyboard matrix design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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