MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics
About the MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics PCB
MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics is an open source PCB design by HO44-PROJECT, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 10.4 × 29.6 mm, with 20 components from 4 distinct parts.
By type, the board carries 8 connectors, 8 LEDs and 4 resistors.
From the project
Electronics for my diy HO scale Deutsche Bahn train signals
This is my own project for building model railway HO scale (1:87) Deutsche Bundesbahn (DB) style Era III (1945-1970) Train Signals following this specification.
This is part of a complete project involving:
- 3D printing (Maker World) - Electronics (PCB design and soldering) (github) - Arduino code (demo, DCC and JMRI integration) (github)
These sites were a great source of inspiration: stummi forum (DE) [digital bahn (DE)] (https://www.digital-bahn.de/info_kompo/signale.htm)
MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics bill of materials (BOM)
20 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | Conn_01x01 | SolderWirePad_1x01_SMD_1x2mm | J1, J2, J3, J4 |
| 4 | Conn_01x01 | Pin_D0.9mm_L10.0mm_W2.4mm_FlatFork | J5, J6, J7, J8 |
| 8 | LED | LED_D1.8mm_W3.3mm_H2.4mm_mine | DG1, DG2, DO/R1, DO/V1, DR1, DR2, DW1, DW2 |
| 4 | 100 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics design files
The KiCad project lives in the HO44-PROJECT/MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics repository on GitHub; these links point at the commit this page was built from.
MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics: common questions
How big is the MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics PCB?
The MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics measures 10.4 × 29.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics?
20 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics design files?
From the HO44-PROJECT/MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MrJ-HO-scale-DB-style-Era-III-Train-Signals-Electronics design in my own project?
Yes, under the terms of its GPL-3.0 license, which HO44-PROJECT chose for the repository.