2 layers57 × 55.2 mm
LogicAnalyzer
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
10 parts5.1kGPL-3.0
2 layers79.5 × 47 mm
Muse
ayukmr/museSmall device for outputting MIDI
- Size
- 79.5 × 47 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 10
- Nets
- 18
- Pads
- 61
- Tracks, vias
- 60, 12
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 10 Jun 2026
- Updated
- 28 Oct 2026
Overview
Muse is an open-source printed circuit board by ayukmr, from the ayukmr/muse repository on GitHub, published under the MIT licence. It is a 2-layer board of 79.5 × 47 mm with 10 parts on 18 nets, routed with 60 tracks and 12 vias.
Its parts include 7 switches, 1 IC and 1 connector. It belongs with the audio and music boards and the RP2040 boards of this library.
README
README.mdmuse
Small device for outputting MIDI, with a rotary encoder, buttons, and an OLED screen.
The board is controlled by a XIAO RP2040 and uses USB-C for both power and data. A slide switch selects between two modes. In assign mode, the rotary encoder is used to select notes on the OLED screen and the buttons store the current note. In play mode, pressing a button sends its assigned note.
This is intended as a simpler hand-solderable board and as a small trinket.
Schematic
PCB
BOM
| Reference | Qty | Value | DigiKey Part # | $ |
|---|---|---|---|---|
| J1 | 1 | Conn_01x04 | MTLW-104-05-G-S-170-ND | $1.16 |
| SW1 | 1 | RotaryEncoder | PEC11S-9213K-S0015-ND | $3.29 |
| SW2 | 1 | SW_Push | 401-2002-1-ND | $0.87 |
| SW3,SW4,SW5,SW6,SW7 | 5 | SW_Push | 39-B3FS-4092P-BCT-ND | $4.96 |
| U1 | 1 | XIAO-RP2040-SMD | 1597-102010428-ND | $4.88 |
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | SW_Push | Project:B3FS4092PB | SW3, SW4, SW5, SW6, SW7 |
| 1 | Conn_01x04 | Project:DFR0648 | J1 |
| 1 | LOGO | LOGO | G*** |
| 1 | RotaryEncoder | Project:PEC11S929KN0015 | SW1 |
| 1 | SW_Push | Project:JS202011SCQN | SW2 |
| 1 | XIAO-RP2040 | Project:XIAO-RP2040-SMD | U1 |
Questions
How big is the Muse PCB?
It measures 79.5 × 47 mm and has 2 copper layers, 1 mm thick.
What parts does the Muse use?
10 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 Muse KiCad files?
From the ayukmr/muse repository on GitHub, at the commit this page was made from: the board is pcb/muse.kicad_pcb and its schematic pcb/muse.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Muse design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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