Bifrost left thumb
About the Bifrost left thumb PCB
Bifrost left thumb is an open source PCB design by hringdrifi, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 58.5 × 21 mm, with 11 components from 6 distinct parts.
By type, the board carries 3 switches, 3 diodes and 3 capacitors.
From the project
KiCad source files for the left half of Bifrǫst.
KiCad source files for the left half of Bifrǫst.
This is an incomplete and unverified work in progress. Do not order boards or rely on this design without independently reviewing the schematic, layout, footprints, mechanical fit, and electrical connections.
The project was initially created from a Smiðr export, then received substantial additional modifications. It is no longer an unmodified Smiðr export.
Bifrost left thumb bill of materials (BOM)
11 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MountingHole | SMD-1_BD4.4-D2.8 | H1, H2 |
| 3 | 1U | SW_Smidr_Gateron_LP_Hotswap | SW1, SW2, SW3 |
| 1 | E6C1209RGBC3UDA WS2812B-2020 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D1 |
| 1 | 1N5819WS WS2812B-2020 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D2 |
| 1 | WS2812B-2020 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D3 |
| 3 | 10U 100n | C_0402_1005Metric | C1, C2, C3 |
Bifrost left thumb design files
The KiCad project lives in the hringdrifi/bifrost repository on GitHub; these links point at the commit this page was built from.
Bifrost left thumb: common questions
How big is the Bifrost left thumb PCB?
The Bifrost left thumb measures 58.5 × 21 mm, has 2 copper layers and is 1.2 mm thick.
How many components are on the Bifrost left thumb?
11 components, from 6 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 Bifrost left thumb design files?
From the hringdrifi/bifrost 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 Bifrost left thumb design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which hringdrifi chose for the repository.
