2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers89.3 × 66.1 mm
Fi Pad
BeakerLink/Fi-PadMy Hackpad submision for 2025 Hack Club
- Size
- 89.3 × 66.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 18
- Pads
- 73
- Tracks, vias
- 73, 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Jun 2025
- Updated
- 29 Jun 2025
Overview
Fi Pad is an open-source printed circuit board by BeakerLink, from the BeakerLink/Fi-Pad repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 89.3 × 66.1 mm with 15 parts on 18 nets, routed with 73 tracks and 3 vias.
Its parts include 9 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
README
README.mdFi-Pad
This is my take on the HackPad for the 2025 Hack Club. It features 9 programable keys, and a 0.91 in OLED screen
Design
I designed the PCB using Ki-Cad, and designed the case in OnShape
PCB schematic
PCB layout
Full Case
Top Case
Base Case
Firmware Overview
The firmware is still in development, I plan to update this once I have a semifunctional build. It will be based around QKM, and use VIA for dynamic changes.
BOM
- 1x Xiao RP2040
- 1x 0.91 in OLED display
- 1x PCB
- 9x MX keyboard Switchs
- 9x DSA Keycaps
- 4x M3x5mx4mm Heat Set Inserts
- 4x M3x16 Screws
- 1x 3D printed Top Shell
- 1x 3D printed Base Shell
What's in a name
I named this project the "Fi-Pad" for two reasons. First of all, some backstory. My name is Link, and with that has come a healthy obsession with "The Ledgend of Zelda" In the games there is a reoccuring item called "The Master Sword." Inside the sword dwells a spirit named "Fi" Which was appointed by the goddess to Assist "Link" In their journey. Bringing this Back to me, I nicknamed my laptop "Fi" because of how it assists me through my journey. And the other reason I named the project "Fi-Pad" is a play on Apple's iPad.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | Mx-Switch | PCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00u | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | 0.91 Oled Display | Connector_PinSocket_2.00mm:PinSocket_1x04_P2.00mm_Vertical | J1 |
| 1 | XIAO-RP2040-SMD | Seeed Studio XIAO Series Library:XIAO-RP2040-SMD | U1 |
The 11 most common of 15 parts.
Questions
How big is the Fi Pad PCB?
It measures 89.3 × 66.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Fi Pad use?
15 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Fi Pad KiCad files?
From the BeakerLink/Fi-Pad repository on GitHub, at the commit this page was made from: the board is Ki-Cad files/Fi-Pad.kicad_pcb and its schematic Ki-Cad files/Fi-Pad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fi Pad design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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