Uruz busboard
digitalrane·uruz-busboard
About the Uruz busboard PCB
Uruz busboard is an open source PCB design by digitalrane, published on GitHub. It is a 2-layer board measuring 242 × 66 mm, with 44 components from 40 distinct parts.
Other key parts include the 5V_REG. By type, the board carries 34 connectors, 3 diodes, 3 capacitors, 3 resistors and 1 IC.
It belongs with the audio designs in this gallery.
From the project
OSHW Eurorack Bus Board
Uruz Bus Board for Eurorack ===========================
An OSHW bus board for Eurorack power connectors. The +5V regulator is optional, and only needed if you don't supply +5V to the input of the bus board. Includes power LEDs for each voltage rail. Can be daisy-chained with multiple boards using the additional pass connector.
This bus board will destroy everything you plug into it, remove bookmarks from the books you are reading, and spoil any nearby milk. Do not use it, and especially don't blame me if something bad happens.

Main components on the Uruz busboard
Uruz busboard bill of materials (BOM)
44 components, 40 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 5V_REG | TO-263-3_TabPin2 | U1 |
| 1 | PWR_IN | AK300-4 | J1 |
| 1 | PWR_OUT | AK300-4 | J2 |
| 1 | GATE_IN | Pin_Header_Straight_1x02_Pitch2.54mm | J3 |
| 1 | GATE_OUT | Pin_Header_Straight_1x02_Pitch2.54mm | J4 |
| 1 | CV_IN | Pin_Header_Straight_1x02_Pitch2.54mm | J5 |
| 1 | CV_OUT | Pin_Header_Straight_1x02_Pitch2.54mm | J6 |
| 1 | PWR1 | IDC_Header_Straight_16pins_silks | J7 |
| 1 | PWR8 | IDC_Header_Straight_16pins_silks | J8 |
| 1 | PWR15 | IDC_Header_Straight_16pins_silks | J9 |
| 1 | PWR22 | IDC_Header_Straight_16pins_silks | J10 |
| 1 | PWR2 | IDC_Header_Straight_16pins_silks | J11 |
| 1 | PWR9 | IDC_Header_Straight_16pins_silks | J12 |
| 1 | PWR16 | IDC_Header_Straight_16pins_silks | J13 |
| 1 | PWR23 | IDC_Header_Straight_16pins_silks | J14 |
| 1 | PWR3 | IDC_Header_Straight_16pins_silks | J15 |
| 1 | PWR10 | IDC_Header_Straight_16pins_silks | J16 |
| 1 | PWR17 | IDC_Header_Straight_16pins_silks | J17 |
| 1 | PWR24 | IDC_Header_Straight_16pins_silks | J18 |
| 1 | PWR4 | IDC_Header_Straight_16pins_silks | J19 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PWR11 | IDC_Header_Straight_16pins_silks | J20 |
| 1 | PWR18 | IDC_Header_Straight_16pins_silks | J21 |
| 1 | PWR25 | IDC_Header_Straight_16pins_silks | J22 |
| 1 | PWR5 | IDC_Header_Straight_16pins_silks | J23 |
| 1 | PWR12 | IDC_Header_Straight_16pins_silks | J24 |
| 1 | PWR19 | IDC_Header_Straight_16pins_silks | J25 |
| 1 | PWR26 | IDC_Header_Straight_16pins_silks | J26 |
| 1 | PWR6 | IDC_Header_Straight_16pins_silks | J27 |
| 1 | PWR13 | IDC_Header_Straight_16pins_silks | J28 |
| 1 | PWR20 | IDC_Header_Straight_16pins_silks | J29 |
| 1 | PWR27 | IDC_Header_Straight_16pins_silks | J30 |
| 1 | PWR7 | IDC_Header_Straight_16pins_silks | J31 |
| 1 | PWR14 | IDC_Header_Straight_16pins_silks | J32 |
| 1 | PWR21 | IDC_Header_Straight_16pins_silks | J33 |
| 1 | PWR28 | IDC_Header_Straight_16pins_silks | J34 |
| 1 | +5 | LED_1206 | D1 |
| 1 | +12 | LED_1206 | D2 |
| 1 | -12 | LED_1206 | D3 |
| 3 | 10uF | CP_Elec_4x4.5 | C1, C2, C3 |
| 3 | 470 | R_0805 | R1, R2, R3 |
Uruz busboard design files
The KiCad project lives in the digitalrane/uruz-busboard repository on GitHub; these links point at the commit this page was built from.
Uruz busboard: common questions
How big is the Uruz busboard PCB?
The Uruz busboard measures 242 × 66 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Uruz busboard?
44 components, from 40 distinct parts. The full bill of materials is listed on this page.
Where can I download the Uruz busboard design files?
From the digitalrane/uruz-busboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Uruz busboard design in my own project?
The repository has no license, so all rights stay with digitalrane. Use it as a reference, and ask the author before reusing the design.
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