HardLabs

Max

MaxKiv·kibo·pcb/left/max.kicad_pcb

Max PCB layout, top view — open source RP2040/RP2350 board by MaxKiv

About the Max PCB

Max is an open source RP2040/RP2350 PCB design by MaxKiv, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 144.6 × 92.5 mm, with 28 components from 7 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 21 relays, 2 connectors, 2 resistors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

My custom Piantor + Corne inspired keyboard

An awesome custom split keyboard, at least I think so 😉. Made by Max Kivits and Timon Borg, the KiBo!

This keyboard is loosely based on the [Piantor] and [Cantor] keyboards. It's a 42-key diodeless non-flippable cherry-mx hotswapable mechanical split keyboard with aggressive column staggering. It's powered by 2 RP2040, completely overkill! I redesigned the PCB to use cherry-mx style hotswap switches and adjusted the margins so it fits my hands better. The pcb features an artsy silklayer, because why not?

Max, from the project README
From the project README

Main components on the Max

Pico

Max bill of materials (BOM)

28 components, 7 distinct parts.

QtyPartRefs
1
Pico
U2
1
TRRS
J1
1
OLED
J2
21
KEYSW
K00, K2, K02, K03, K04, K05, K10, K11 +13
2
MountingHole
MB3, MB4
1
5k6
R1
1
10k
R2

Max design files

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

Max: common questions

What microcontroller does the Max use?

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

How big is the Max PCB?

The Max measures 144.6 × 92.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Max?

28 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Max design files?

From the MaxKiv/kibo repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Max design in my own project?

Yes, under the terms of its GPL-3.0 license, which MaxKiv chose for the repository.

Can I test firmware for the Max 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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