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Microgroove

afternoon·microgroove·hardware/microgroove.kicad_sch

Microgroove

About the Microgroove PCB

Microgroove is an open source RP2040/RP2350 PCB design by afternoon, published on GitHub under the MIT license. It is a board, with 22 components from 12 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the H11L1. By type, the board carries 11 switches, 4 resistors, 3 connectors, 2 ICs and 1 diode.

It belongs with the audio designs in this gallery.

From the project

8-track open-source hardware MIDI sequence generator

8-track open-source hardware MIDI sequence generator.

- Machines offer different ways to generate sequences: random melodies, Euclidean rhythms, rhythms from Mutable Instruments' Grids. - Tweak parameters to explore new ideas, or to perform live. - Quantize melodies to scales. - Add swing and groove. - Create interplay between sequences, like call-and-response, or ABAC structures.

Main components on the Microgroove

PicoH11L1

Microgroove bill of materials (BOM)

22 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pico
U1
1
H11L1
U2
1
UJ2-MIBH-4-SMT
UJ2-MIBH-4-SMT-TR
J1
2
SJ1-3513
J2, J3
1
NHD-2.7-12864WDW3
DS1
6
RotaryEncoder
SW1, SW2, SW3, SW4, SW5, SW6
5
TL1100F160Q6JBLK
SW7, SW8, SW9, SW10, SW11
1
1N914
D1
1
470
R1
1
220
R2
1
33
R3
1
10
R4

Microgroove design files

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

Microgroove: common questions

What microcontroller does the Microgroove use?

The Microgroove is built around the Pico, from the RP2040/RP2350 family.

How many components are on the Microgroove?

22 components, from 12 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 Microgroove design files?

From the afternoon/microgroove repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the Microgroove design in my own project?

Yes, under the terms of its MIT license, which afternoon chose for the repository.

Can I test firmware for the Microgroove without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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