

Odm m1 v1
A proposal for an open digital modular synthesizer architecture and protocol.
- Size
- 76.2 × 88.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 97
- Pads
- 212
- Tracks, vias
- 491, 11
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 7 Dec 2016
- Updated
- 19 May 2018
Overview
Odm m1 v1 is an open-source printed circuit board by errsu, from the errsu/opendigitalmodular repository on GitHub. It is a 2-layer board of 76.2 × 88.9 mm with 58 parts on 97 nets, routed with 491 tracks and 11 vias.
Its parts include 18 resistors, 13 diodes, 10 connectors, 6 capacitors and 2 ICs. It belongs with the audio and music boards of this library.
README
README.mdOpen Digital Modular (ODM): Proposal for a Synthesizer Architecture
What is it?
ODM is an architectural idea that is to be turned into a specification and a prototype implementation. All this is work in progress. The details can be found in the ODM specification document.
License
See the licenses page for details.
Questions and comments
The main goal of making this public is to get in contact with people for review, comments, proposals, criticism or laughter. Most valued would be cooperation, and there is some hope that in the not-so-far future somebody might want to build actual synthesizers this way.
So, please use the issue page for public communication or send me a mail for a private conversation.
/errsu
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | Led_Small | errsu:LED-3MM | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13 |
| 8 | 1k | errsu:Resistor_Horizontal_RM7mm | R9, R11, R12, R13, R14, R15, R16, R18 |
| 6 | 100 | errsu:Resistor_Horizontal_RM7mm | R1, R2, R3, R4, R10, R17 |
| 6 | 100n | errsu:C_Disc_D3_P2.5 | C1, C2, C3, C4, C5, C6 |
| 4 | 10k | errsu:POT_RK09 | P1, P2, P3, P4 |
| 4 | 27k | errsu:Resistor_Horizontal_RM7mm | R5, R6, R7, R8 |
| 4 | JACK_2P | errsu:PHONEJACK_35MM_MONO_VERT | J3, J4, J5, J6 |
| 4 | SW_PUSH | errsu:SW_PUSH_SMALL | KEY1, KEY2, KEY3, KEY4 |
| 2 | SP490ECP-L | errsu:DIP-8_W7.62mm | U1, U2 |
| 1 | 9x1k | errsu:Resistor_Array_SIP9 | RR1 |
| 1 | CN10 | errsu:Socket_Strip_Straight_2x20_RS | J2 |
| 1 | CN7-R | errsu:Socket_Strip_Straight_1x20_RS | J1 |
The 54 most common of 58 parts.
Similar boards
- 2 layers252.9 × 77.6 mm

- 2 layers50 × 50 mm

- 2 layers97.3 × 71 mm

ZynScreen v1.5
zynthian/zynthian-hw
Zynthian hardware stuff: PCBs, schemes, parts specifications, pin assignment, ...
58 parts156 - 2 layers34 × 46 mm

- 2 layers148 × 81 mm

Communicator pcb
Hack-a-Day/2025-Communicator_Badge
The 2025 Hackaday Supercon RF Communicator Badge
58 parts107MIT - 2 layers53.3 × 36.3 mm

- 2 layers70 × 30.3 mm

Pico 2HP Audio
rheslip/2HPico-Eurorack-Module-Hardware
2HP Eurorack module based on Raspberry Pi Pico 2
58 parts84 - 2 layers35.7 × 34.2 mm

Wideband controller
mck1117/wideband
The firmware/boards directory contains configuration for each board this firmware supports.
58 parts81MIT
Questions
How big is the Odm m1 v1 PCB?
It measures 76.2 × 88.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Odm m1 v1 use?
58 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 Odm m1 v1 KiCad files?
From the errsu/opendigitalmodular repository on GitHub, at the commit this page was made from: the board is hardware/odm_m1_pcb/odm_m1_v1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Odm m1 v1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask errsu before reusing the design.