Pragmatic 54
About the Pragmatic 54 PCB
Pragmatic 54 is an open source PCB design by jamessa, published on GitHub under the MIT license. It is a 2-layer board measuring 126.7 × 100.2 mm, with 109 components from 4 distinct parts.
By type, the board carries 54 switches, 54 diodes and 1 connector.
It belongs with the keyboards designs in this gallery.
From the project
A modular split keyboard kit.
- 28 keys per hand with a fully symmetric double side design. One side is designed for the left hand and the other for the right. - Duplex Matrix to save pins. - 8-pin connector that utilizes a user-friendly 2x4 2.54mm PinHeader. - Support Kailh hotswap sockets. - A compact key arrangement with a 19mm x 18mm pitch and an 18mm vertical pitch that reduces fingers need to travel distance.
Pragmatic 54 bill of materials (BOM)
109 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_02x04_Odd_Even | matrix_connector | J1 |
| 27 | SW_Push_45deg | ChocV1_Hotswap_reverse | SW1, SW2, SW3, SW4, SW5, SW6, SW13, SW14 +19 |
| 27 | SW_Push_45deg | ChocV1_Hotswap | SW7, SW8, SW9, SW10, SW11, SW12, SW19, SW20 +19 |
| 54 | 1N4448W | D3_SMD_v2 | D1, D2, D3, D4, D5, D6, D7, D8 +46 |
Pragmatic 54 design files
The KiCad project lives in the jamessa/Pragmatic repository on GitHub; these links point at the commit this page was built from.
Pragmatic 54: common questions
How big is the Pragmatic 54 PCB?
The Pragmatic 54 measures 126.7 × 100.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pragmatic 54?
109 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pragmatic 54 design files?
From the jamessa/Pragmatic repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pragmatic 54 design in my own project?
Yes, under the terms of its MIT license, which jamessa chose for the repository.
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