Boardloaf

yuburoll·Boardloaf·kicad/boardloaf.kicad_pcb

About the Boardloaf PCB

Boardloaf is an open source RP2040/RP2350 PCB design by yuburoll, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 39 components from 4 distinct parts.

Its main chip is the RP2040-Zero, from the RP2040/RP2350 family. By type, the board carries 18 switches, 18 diodes, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

36 key hotswappable split keyboard in 100x100 pcb

- 2x rp2040 zero (boards formly created by waveshare) (Approx. 4-8$)

- 2x Boardloaf PCB Boards (5 boards are 2$ on JLC w/o shipping cost)

- 1x printed case sets, which you want to make it (4$ for sandwitch, Approx. 12$ if you buy printed one)

- (for V1) 32x M2x4 bolts, 16x M2x7 spacers (under 4mm radius) (Approx. 2$)

Boardloaf, from the project README — From the project README

Main components on the Boardloaf

RP2040-Zero

Boardloaf bill of materials (BOM)

39 components, 4 distinct parts.

Qty	Part	Footprint	Refs
1	RP2040-Zero	RP2040-Zero-RESIZED	U1
2	AudioJack4	TRRS-PJ-320A_PIN	J1, J2
18	SW_Push	Kailh_socket_MX_optional_reversible-MIRROR	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +10
18	D	Diode_TH_SMD_REVERSIBLE	D1, D2, D3, D4, D5, D6, D7, D8 +10

Boardloaf design files

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

Layoutkicad/boardloaf.kicad_pcb
Schematickicad/boardloaf.kicad_sch

Boardloaf: common questions

What microcontroller does the Boardloaf use?

The Boardloaf is built around the RP2040-Zero, from the RP2040/RP2350 family.

How big is the Boardloaf PCB?

The Boardloaf measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Boardloaf?

39 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Boardloaf design files?

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

Can I use the Boardloaf design in my own project?

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

Can I test firmware for the Boardloaf 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.