HardLabs

Grooveboard mx rp

ianklug·grooveboard·grooveboard-mx-rp/grooveboard-mx-rp.kicad_pcb

Grooveboard mx rp PCB layout, top view — open source RP2040/RP2350 board by ianklug

About the Grooveboard mx rp PCB

Grooveboard mx rp is an open source RP2040/RP2350 PCB design by ianklug, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 120 × 25 mm, with 37 components from 19 distinct parts.

Its main chip is the C2040, from the RP2040/RP2350 family. Other key parts include the C190862 and C51118. By type, the board carries 16 capacitors, 8 resistors, 4 relays, 3 ICs, 2 switches and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

A four-key mechanical keyboard for rhythm games.

Special thanks to Sebastiaan Swinkels for technical assistance.

Please clone this repository using the --recurse-submodules flag. Some of the required symbol and footprint libraries will not be included otherwise.

Please note that the RP2040 models are functional at a hardware level, but software is incomplete.

The 2.x versions (grooveboard-rp) use the RP2040 MCU, and require different firmware from the 1.x versions. They also include a few new features and refinements over the 1.x models, including M2 mounting holes and improved key spacing.

Grooveboard mx rp, from the project README
From the project README

Main components on the Grooveboard mx rp

C2040C190862C51118

Grooveboard mx rp bill of materials (BOM)

37 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2040
RP2040
U1
1
C190862
W25Q128JV
U2
1
C51118
AP2112K-3.3
U3
1
C255903
12MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
1
C261942
500mA
F1
4
MX-NoLED
K1, K2, K3, K4
1
C318884
BOOT
SW1
1
C318884
RESET
SW2
1
C191023
20V 1A
D1
2
C15525
10uF
C1, C2
10
C1525
100nF
C3, C8, C9, C10, C11, C12, C13, C14 +2
2
C52923
1uF
C4, C5
2
C32949
10pF
C6, C7
1
DNP
R1
2
C25905
5.1k
R2, R3
2
C25092
27
R4, R5
2
C25905
1k
R6, R8
1
C25744
10k
R7

Grooveboard mx rp design files

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

Grooveboard mx rp: common questions

What microcontroller does the Grooveboard mx rp use?

The Grooveboard mx rp is built around the C2040, from the RP2040/RP2350 family.

How big is the Grooveboard mx rp PCB?

The Grooveboard mx rp measures 120 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Grooveboard mx rp?

37 components, from 19 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 Grooveboard mx rp design files?

From the ianklug/grooveboard repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Grooveboard mx rp design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which ianklug chose for the repository.

Can I test firmware for the Grooveboard mx rp 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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