HardLabs

Kivu12

ohmtech-rdi·eurorack-blocks·boards/kivu12/kivu12.kicad_pcb

Kivu12 PCB layout, top view — open source board by ohmtech-rdi
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About the Kivu12 PCB

Kivu12 is an open source PCB design by ohmtech-rdi, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 59.6 × 109.5 mm, with 135 components from 40 distinct parts.

Other key parts include the 4051, 4021, PCA9685PW and TL072. By type, the board carries 59 resistors, 20 diodes, 12 connectors, 10 capacitors, 8 jumpers and 6 ICs.

It belongs with the audio designs in this gallery.

From the project

Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust

kivu12 is a board used for 12HP modules.

The 12HP kivu12 board is designed to host, at the bottom of the module, 12 standard Eurorack 3.5mm jacks connectors, and/or trimmer potentiometers typically used to represent attenuverters, distributed into 3 rows.

The rest of the module UI then goes at the top. The pin headers layout on the left and right side don't allow to place small UI controls too close to the border. The pin header on the top doesn't allow to place jack connectors, as it is typically done in sequencer modules.

Kivu12, from the project README
From the project README

Main components on the Kivu12

40514021PCA9685PWTL072

Kivu12 bill of materials (BOM)

135 components, 40 distinct parts.

QtyPartRefs
2
4051
U1, U2
2
4021
U3, U4
1
PCA9685PW
U6
1
TL072
U9
1
POWER BUS
J0
1
P1
J1
1
CIX
J2
2
BX
J3, J7
1
LX1
J4
1
ANALOG
J5
1
POWER2
J6
1
POWER1
J9
1
SD
J10
1
GND
J11
1
LX2
J12
1
DaisyPatchSm_Rev1
DPSM1
4
DPSM Header
Dummy1, Dummy2, Dummy3, Dummy4
1
Big Pin Header
Dummy5
8
Jumper
Dummy6, Dummy7, Dummy8, Dummy9, Dummy10, Dummy11, Dummy12, Dummy13
3
ToolingHole
H2, H3, H4
Show 20 more
QtyPartRefs
2
Jumper
JP3, JP4
1
CLK
JP5
1
CMD
JP6
1
D0
JP7
1
D1
JP8
1
D2
JP9
1
D3
JP10
1
Micro_SD_Card
JSD1
17
BAT54SW
D1, D2, D3, D4, D5, D6, D7, D8 +9
1
LM4040DBZ-5
D22
2
D_Schottky
D23, D24
2
Ferrite_Bead
L1, L2
2
10u
C1, C2
7
100n
C3, C4, C5, C6, C8, C11, C12
1
1u
C13
18
1K
R1, R2, R44, R45, R46, R47, R48, R49 +10
22
100k
R4, R5, R6, R7, R8, R14, R15, R16 +14
1
4.99k
R76
2
4.7k
R79, R80
16
1M
R84, R85, R86, R87, R88, R89, R90, R91 +8

Kivu12 design files

The KiCad project lives in the ohmtech-rdi/eurorack-blocks repository on GitHub; these links point at the commit this page was built from.

Kivu12: common questions

How big is the Kivu12 PCB?

The Kivu12 measures 59.6 × 109.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Kivu12?

135 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Kivu12 design files?

From the ohmtech-rdi/eurorack-blocks repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Kivu12 design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which ohmtech-rdi chose for the repository.

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