HardLabs

OpenEuroBoard

sensai7·OpenEuroBoard

OpenEuroBoard PCB layout, top view — open source board by sensai7
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About the OpenEuroBoard PCB

OpenEuroBoard is an open source PCB design by sensai7, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 300 × 100 mm, with 135 components from 49 distinct parts.

Other key parts include the LM1117IMP-5, TL074, CD40107BE, 6N139 and TL072. By type, the board carries 51 connectors, 21 resistors, 20 capacitors, 12 switches, 8 ICs and 8 test points.

It belongs with the audio and dev boards & breakouts designs in this gallery.

From the project

Open source Eurorack development board

V1.0 First version V1.1 Addressed the issues from Issue 1. Updated Silkscreen

OpenEuroBoard, from the project README
From the project README

Main components on the OpenEuroBoard

LM1117IMP-5TL074CD40107BE6N139TL072

OpenEuroBoard bill of materials (BOM)

135 components, 49 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM1117IMP-5
U1
3
TL074
U2, U3, U6
1
CD40107BE
U4
1
6N139
U5
1
TL072
U7
1
TL074
U8
1
Eurorack_bus_mini
J1
4
CONN_01X07
Conn_01x07
J2, J3, J4, J5
1
Jack 1
J6
1
Jack 2
J7
5
CONN_01X08
Conn_01x08
J8, J11, J27, J28, J57
1
Jack 3
J9
1
Jack 4
J10
1
Jack 5
J12
1
Jack 6
J13
1
Jack 7
J14
1
Jack 8
J15
5
CONN_01X04
Conn_01x04
J16, J29, J46, J53, J56
1
MIDI_in
J17
13
CONN_01X03
Conn_01x03
J18, J19, J20, J22, J24, J26, J32, J34 +5
Show 29 more
QtyPartRefs
1
MIDI_out
J21
7
CONN_01X05
Conn_01x05
J23, J25, J31, J33, J35, J39, J42
1
CONN_01X02
Conn_01x02
J45
2
CONN_01X04
Conn_01x04
J52, J54
1
Jumpers
J55
1
CONN_01X02
Conn_01x02
J58
1
AUDIOJACK3_GROUND
AudioJack3_Ground
J59
4
100K
100k
RV1, RV2, RV9, RV11
1
1M
RV3
2
1M LOG
RV4, RV5
1
10K
10k
RV6
1
1k
RV10
6
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6
6
SW_SPDT
SW7, SW8, SW9, SW10, SW11, SW12
8
TestPoint
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
5
LED
D1, D2, D3, D4, D5
1
1N4148
D6
1
100U
100u
C1
12
100N
100n
C2, C3, C4, C5, C7, C8, C15, C16 +4
3
10U
10u
C6, C9, C10
2
22N
22n
C11, C12
2
1u
C13, C14
1
2.2K
2.2k
R1
2
4.7K
4.7k
R2, R3
8
1k
R4, R5, R6, R7, R18, R19, R20, R21
3
220
R8, R11, R13
2
120
R9, R10
1
270
R12
4
10K
10k
R14, R15, R16, R17

OpenEuroBoard design files

The KiCad project lives in the sensai7/OpenEuroBoard repository on GitHub; these links point at the commit this page was built from.

OpenEuroBoard: common questions

How big is the OpenEuroBoard PCB?

The OpenEuroBoard measures 300 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OpenEuroBoard?

135 components, from 49 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 OpenEuroBoard design files?

From the sensai7/OpenEuroBoard 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 OpenEuroBoard design in my own project?

Yes, under the terms of its GPL-3.0 license, which sensai7 chose for the repository.

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