HardLabs

Mini Midi

Mithilessh2010·Midi-Keyboard·PCB/Mini_Midi.kicad_pcb

Mini Midi PCB layout, top view — open source Raspberry Pi board by Mithilessh2010

About the Mini Midi PCB

Mini Midi is an open source Raspberry Pi PCB design by Mithilessh2010, published on GitHub. It is a 2-layer board measuring 327.7 × 109.7 mm, with 78 components from 6 distinct parts.

Its main chip is the Orpheus_Pico, from the Raspberry Pi family. Other key parts include the PCM5100. By type, the board carries 38 diodes, 37 switches, 1 IC, 1 module and 1 connector.

It belongs with the audio and keyboards designs in this gallery.

Mini Midi, from the project README
From the project README

Main components on the Mini Midi

PCM5100Orpheus_Pico

Mini Midi bill of materials (BOM)

78 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PCM5100
U1
1
Orpheus_Pico
A1
1
ST7735R
J1
36
SW_Push_45deg
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +28
1
SW_SPST
SW37
38
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +30

Mini Midi design files

The KiCad project lives in the Mithilessh2010/Midi-Keyboard repository on GitHub; these links point at the commit this page was built from.

Mini Midi: common questions

What microcontroller does the Mini Midi use?

The Mini Midi is built around the Orpheus_Pico, from the Raspberry Pi family.

How big is the Mini Midi PCB?

The Mini Midi measures 327.7 × 109.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mini Midi?

78 components, from 6 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 Mini Midi design files?

From the Mithilessh2010/Midi-Keyboard repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Mini Midi design in my own project?

The repository has no license, so all rights stay with Mithilessh2010. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mini Midi without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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