Polar light
About the Polar light PCB
Polar light is an open source PCB design by slonket, published on GitHub under the MIT license. It is a 2-layer board measuring 12.6 × 11 mm, with 6 components from 5 distinct parts.
By type, the board carries 2 connectors, 2 diodes and 2 resistors.
From the project
An assortment of projects to supplement the Lego 12V "Gray" era trains.
This is the high-level directory for projects within this repository. All projects follow the same general file structure, though some hierarchical items may be missing if the project does not require them (e.g. /firmware/ for a project without an MCU): - /hardware/ - PCBA project. - /panel/ - panelized PCBA project for manufacturing. - /productionfiles/ - production files for the PCBA project (including BOM and POS files). - /firmware/ - embedded firmware for MCU(s) contained within PCBA project. - /mechanical/ - 3D models (.step) for the physical item(s). - /outlines/ - 2D profiles (.dxf`)…
Polar light bill of materials (BOM)
6 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PIN_A | J_Pad_1_Lego | J1 |
| 1 | PIN_B | J_Pad_1_Lego | J2 |
| 2 | SM4007PL | D_SOD-123F | D1, D3 |
| 1 | 270R 270 | R_1206 | R1 |
| 1 | 240R 270 | R_1206 | R2 |
Polar light design files
The KiCad project lives in the slonket/lego-12v repository on GitHub; these links point at the commit this page was built from.
Polar light: common questions
How big is the Polar light PCB?
The Polar light measures 12.6 × 11 mm, has 2 copper layers and is 1 mm thick.
How many components are on the Polar light?
6 components, from 5 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 Polar light design files?
From the slonket/lego-12v 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 Polar light design in my own project?
Yes, under the terms of its MIT license, which slonket chose for the repository.
