2 layers57 × 75 mm
2 layers153.9 × 138 mm
Bifrost left
Geileren/BifrostMy costum keyboard config
- Size
- 153.9 × 138 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 57
- Pads
- 471
- Tracks, vias
- 406, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Mar 2026
- Updated
- 21 Apr 2026
Overview
Bifrost left is an open-source printed circuit board by Geileren, from the Geileren/Bifrost repository on GitHub. It is a 2-layer board of 153.9 × 138 mm with 78 parts on 57 nets, routed with 406 tracks and 0 vias.
Its parts include 34 switches and 32 diodes. It belongs with the nRF52 and nRF5x boards of this library.
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | ComboDiode | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +16 | |
| 32 | MX | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +16 | |
| 6 | HOLE_M2_TH | , , , , , | |
| 2 | switch_tht | SW1, SW2 | |
| 1 | JST_PH_S2B-PH-K_02x2.00mm_Angled | JST1 | |
| 1 | nice_nano | nice_nano | MCU1 |
The 74 most common of 78 parts.
Questions
How big is the Bifrost left PCB?
It measures 153.9 × 138 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bifrost left use?
78 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 Bifrost left KiCad files?
From the Geileren/Bifrost repository on GitHub, at the commit this page was made from: the board is Left/output/pcbs/Bifrost_left.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bifrost left design in my own project?
Its repository states no licence, so its author keeps all rights: ask Geileren before reusing the design.
Similar boards
- 2 layers68.5 × 34.5 mm
TERES PCB5-KEYBOARD Rev.A
OLIMEX/DIY-LAPTOP
Do It Yourself Open Source Hardware and Software Modular Hacker's Friendly Laptop
78 parts578Apache-2.0 - 2 layers66.4 × 48.1 mm
- 2 layers38.1 × 19 mm
- 2 layers100 × 50 mm
- 2 layers110.5 × 111.1 mm
Teensy eurorack breakout
newdigate/teensy-eurorack
Hardware Design: Eurorack shield for teensy 4.1 with 14 in / 16 out analog channels
78 parts259MIT - 2 layers65 × 56 mm
Keyboard whiz
CRImier/MyKiCad
My KiCad boards. Can't be bothered uploading individually anymore, so here you go.
78 parts253GPL-3.0 - 2 layers43.2 × 128.3 mm
