2 layers18.5 × 11.1 mm
Switch
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
6 parts4.3kMIT
2 layers83.4 × 75.7 mm
Musmith
akisarke/musmithMuSmith is a mini music controller that obviously can control music (previous track, pause/play, next track) it also has a rotary encoder, an oled screen and 3 buttons. For the buttons it has mechanical switches. The oled screen is displaying the song name and the artist and the rotary encoder controls the volume.
- Size
- 83.4 × 75.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 15
- Pads
- 54
- Tracks, vias
- 55, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 3 Jun 2026
- Updated
- 14 Aug 2026
Overview
Musmith is an open-source printed circuit board by akisarke, from the akisarke/musmith repository on GitHub. It is a 2-layer board of 83.4 × 75.7 mm with 6 parts on 15 nets, routed with 55 tracks and 0 vias.
Its parts include 4 switches, 1 IC and 1 connector.
README
README.mdMuSmith
MuSmith is like a mini music controller that obviously can control music (previous track, pause/play, next track) it also has a rotary encoder and an oled screen. For the buttons it has mechanical switches.
Difficulties
For the difficulties i was pretty much the same as my last project Clicksmith. The case in Fusion 360 was really messing with me, I spent a good time with designing it.
Features:
- Fully 3D printed case
- 3 Keys
- A rotary encoder
- And a 0.91" oled screen
Firmware
The firmware is a custom circuitpython script (That I and AI made) and a janky Powershell script (This one AI made) that runs at startup. Why? Because i couldn't think of a better way to capture the song and the artist to display on the OLED. The rotary encoder controls the volume and the keys as said in the begining go to the previous track - play/pause - go to the next track.
OLED screen
As i said the oled is a 0.91" screen that displays the current song and the artist. If i really want it i will maybe add the current time and the progress bar also.
BOM
What's needed to make this
- 1x case (2 3D printed parts)
- 4x M3x5x4 heatset inserts
- 4x M3x16 screws
- 3x Cherry MX Switches
- 3x Cherry DSA keycaps
- 1x EC11 Rotary encoder
- 1x XIAO RP2040
- 1x 0.91" OLED
That's All! 👋
Images and other nerdy stuff
CAD
Case was made in Fusion 360.
The top and bottom halves of the case fit together using four heatset inserts and four M3 Screws.
PCB
The PCB was made in KiCad pretty fast.
Schematic
Credits
Thank you DinoMito1 for giving me inpso for the readme (some parts i stole and changed but we don't talk about that)
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3 |
| 1 | Conn_01x04 | OLED:SSD1306-0.91-OLED-4pin-128x32 | J2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | RP2040:XIAO-RP2040-DIP | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4 |
Questions
How big is the Musmith PCB?
It measures 83.4 × 75.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Musmith use?
6 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 Musmith KiCad files?
From the akisarke/musmith repository on GitHub, at the commit this page was made from: the board is PCB/musmith.kicad_pcb and its schematic PCB/musmith.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Musmith design in my own project?
Its repository states no licence, so its author keeps all rights: ask akisarke before reusing the design.
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