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Letsupuri 2024 lowprofile main

Pekaso·letsupuri·hardware/PCB_main_lowprofile/Letsupuri_2024_lowprofile_main.kicad_pcb

Letsupuri 2024 lowprofile main PCB layout, top view — open source RP2040/RP2350 board by Pekaso

About the Letsupuri 2024 lowprofile main PCB

Letsupuri 2024 lowprofile main is an open source RP2040/RP2350 PCB design by Pekaso, published on GitHub. It is a 4-layer board measuring 114.3 × 76.2 mm, with 47 components from 10 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q128JVP. By type, the board carries 24 diodes, 14 capacitors, 6 resistors, 2 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

A remake of the 48 key split keyboard "Let's Split".

A remake of the 48 key split keyboard "Let's Split". Left and right connection is using USB Type-C cable. And main and power circult are separated.

- 左右間をUSB-Cケーブルで接続 - PCBはメイン基板と電源基板で分離 - シリコン製ショックアブソーバーを使ったマウント

- ロープロファイル版ビルドガイド(日本語版): Low Profile Ver. Build Guide (JP)

れつぷり!!にはCherry MX版とLow Profile版があります。ハードウェアのメイン基板はCherry MX版（PCBmainMX）とLow Profile版（PCBmainlowprofile）で分かれています。電源基板（PCB_power）は共通です。

Letsupuri 2024 lowprofile main, from the project README
From the project README

Main components on the Letsupuri 2024 lowprofile main

W25Q128JVPRP2040

Letsupuri 2024 lowprofile main bill of materials (BOM)

47 components, 10 distinct parts.

QtyPartRefs
1
W25Q128JVP
U1
1
RP2040
U2
1
12MHz
Y1
24
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +16
10
100n
C1, C5, C6, C8, C9, C10, C11, C12 +2
2
1u
C2, C7
2
27p
C3, C4
2
1k
R1, R6
2
10k
R2, R5
2
22
R3, R4

Letsupuri 2024 lowprofile main design files

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

Letsupuri 2024 lowprofile main: common questions

What microcontroller does the Letsupuri 2024 lowprofile main use?

The Letsupuri 2024 lowprofile main is built around the RP2040, from the RP2040/RP2350 family.

How big is the Letsupuri 2024 lowprofile main PCB?

The Letsupuri 2024 lowprofile main measures 114.3 × 76.2 mm, has 4 copper layers and is 1.2 mm thick.

How many components are on the Letsupuri 2024 lowprofile main?

47 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the Letsupuri 2024 lowprofile main design files?

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

Can I use the Letsupuri 2024 lowprofile main design in my own project?

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

Can I test firmware for the Letsupuri 2024 lowprofile main 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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