2 layers84 × 60 mm
Leds controller
Prevole/alpenhof
A model railway lighting project featuring individually controlled LED lighting for buildings and scenery.
7 parts
2 layers50 × 65 mm
Leds hub
Prevole/alpenhofA model railway lighting project featuring individually controlled LED lighting for buildings and scenery.
- Size
- 50 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 17
- Pads
- 56
- Tracks, vias
- 72, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Oct 2026
- Updated
- 6 Nov 2026
Overview
Leds hub is an open-source printed circuit board by Prevole, from the Prevole/alpenhof repository on GitHub. It is a 2-layer board of 50 × 65 mm with 21 parts on 17 nets, routed with 72 tracks and 0 vias.
Its parts include 16 diodes and 1 connector.
README
README.mdMaquette Alpenhof
A model railway lighting project featuring individually controlled LED lighting for buildings and scenery.
Architecture
- Controller: Raspberry Pi Pico 2 WH generates control signals.
- LED Drivers: ULN2803A ICs switch each LED independently on the ground side.
- LED Hub: Custom KiCad PCB distributes power and connects up to 16 LEDs via JST-XH connectors.
- Power: External 15V DC supply powers the LEDs independently of the Pico.
- Interconnection: A 20-pin IDC ribbon cable carries 16 individual LED channels and four shared +15V connections between the controller and hub.
The Pico controls the drivers; it does not supply power directly to the LEDs. All circuits share a common ground.
Status
Work in progress.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | Conn_01x02 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | LED01, LED02, LED03, LED04, LED05, LED06, LED07, LED08, LED09, LED10, LED11, LED12, LED13, LED14, LED15, LED16 |
| 4 | MountingHole_2.2mm_M2 | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 1 | Conn_02x10_Odd_Even | Connector_IDC:IDC-Header_2x10_P2.54mm_Vertical | J17 |
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Questions
How big is the Leds hub PCB?
It measures 50 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Leds hub use?
21 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 Leds hub KiCad files?
From the Prevole/alpenhof repository on GitHub, at the commit this page was made from: the board is hardware/leds-hub/leds-hub.kicad_pcb and its schematic hardware/controller/leds_controller/leds_controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Leds hub design in my own project?
Its repository states no licence, so its author keeps all rights: ask Prevole before reusing the design.