2 layers90 × 29 mm
4 layers114.3 × 76.2 mm
Letsupuri 2024 MX main
Pekaso/letsupuri12A remake of the 48 key split keyboard "Let's Split".
- Size
- 114.3 × 76.2 mm
- Copper layers
- 4
- Thickness
- 1.2 mm
- Parts
- 93
- Nets
- 74
- Pads
- 369
- Tracks, vias
- 764, 90
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 6 Mar 2025
- Updated
- 22 Mar 2025
Overview
Letsupuri 2024 MX main is an open-source printed circuit board by Pekaso, from the Pekaso/letsupuri repository on GitHub. It is a 4-layer board of 114.3 × 76.2 mm with 93 parts on 74 nets, routed with 764 tracks and 90 vias.
It is built around the RP2040 and W25Q128JVPIQ. Its parts include 24 diodes, 24 switches, 14 capacitors, 6 resistors and 2 ICs. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Main components
2
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 120ms@(32KB) 128Mbit 133MHz 2.7V~3.6V 20 Years Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection、Power lock protection SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbond ElecNOR FLASH
README
README.mdれつぷり!! letsupuri keyboard
48キー左右分離型キーボード「Let's Split」のリメイク版。
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
ビルドガイド Build Guide
- 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（PCB_main_MX）とLow Profile版（PCB_main_lowprofile）で分かれています。電源基板（PCB_power）は共通です。
"れつぷり!!" has the Cherry MX version and the Low Profile version. The main board of the hardware is divided into the Cherry MX version (PCB_main_MX) and the Low Profile version (PCB_main_lowprofile). The power supply board (PCB_power) is the same for both versions.
[!WARNING] Cherry MX版のハードウェア(PCB_main_MX)は現在のところ正しく動きません。The Cherry MX version (PCB_main_MX) does not currently work properly.
ぴくちゃ
more detail at pekaso.org
License
This repository contains both hardware and firmware components, each under a different license.
hardware/: Licensed under the MIT Licensefirmware/: Licensed under the GPL License (inherited from the original repository)
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 1N4148 | Diode_SMD:D_SOD-323 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 |
| 24 | SW_Push | footprint:SW_Hotswap_Kailh_Choc_V1V2_1.00u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +8 |
| 10 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C5, C6, C8, C9, C10, C11, C12, C13, C14 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R2, R5 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R6 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C2, C7 |
| 2 | 22 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 27p | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 1 | +1.1V_L | TestPoint:TestPoint_Pad_D1.0mm | TP16 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | COL0 | TestPoint:TestPoint_Pad_D1.0mm | TP23 |
| 1 | COL1 | TestPoint:TestPoint_Pad_D1.0mm | TP24 |
| 1 | COL2 | TestPoint:TestPoint_Pad_D1.0mm | TP25 |
| 1 | COL3 | TestPoint:TestPoint_Pad_D1.0mm | TP26 |
| 1 | COL4 | TestPoint:TestPoint_Pad_D1.0mm | TP27 |
| 1 | COL5 | TestPoint:TestPoint_Pad_D1.0mm | TP28 |
| 1 | Conn_01x16_Shielded | Connector_FFC-FPC:TE_1-1734839-6_1x16-1MP_P0.5mm_Horizontal | J1 |
| 1 | GPIO20 | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | GPIO21 | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | GPIO22 | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | GPIO23 | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | GPIO24 | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | LED_DATA | TestPoint:TestPoint_Pad_D1.0mm | TP18 |
| 1 | LOGO | footprint:letsupuri_logo | G*** |
| 1 | RESET | TestPoint:TestPoint_Pad_D1.0mm | TP11 |
| 1 | ROW0 | TestPoint:TestPoint_Pad_D1.0mm | TP19 |
| 1 | ROW1 | TestPoint:TestPoint_Pad_D1.0mm | TP20 |
| 1 | ROW2 | TestPoint:TestPoint_Pad_D1.0mm | TP21 |
| 1 | ROW3 | TestPoint:TestPoint_Pad_D1.0mm | TP22 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U2 |
| 1 | SWD | TestPoint:TestPoint_Pad_D1.0mm | TP9 |
| 1 | SW_CLK | TestPoint:TestPoint_Pad_D1.0mm | TP8 |
| 1 | W25Q128JVP | Package_SON:Winbond_USON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | U1 |
More from Pekaso/letsupuri
1Similar boards
- 2 layers290.1 × 130 mm
- 4 layers114 × 87.7 mm
- 2 layers67.9 × 131 mm
FW16 EPD
arthomnix/FW16_EPD
Touchscreen e-paper input module for Framework Laptop 16
67 parts44CC-BY-SA-4.0 - 2 layers307.3 × 148.3 mm
- 2 layers151 × 98 mm
- 2 layers27.3 × 13.2 mm
NovaMkII
SpacehuhnTech/USB-Nova-MkII-PCB
USB Nova is a cute little USB “drive” that acts as a keyboard, much like the USB Rubber Ducky, WiFi Duck, and other BadUSBs.
36 parts7CERN-OHL-P-2.0 - 2 layers269.9 × 93.1 mm
- 4 layers52.7 × 42.5 mm
OmniProbe
emertcakir/OmniProbe
Open-source SWD, JTAG, UART, SPI, I2C and Logic Analyzer platform powered by RP2040
77 parts4MIT
Questions
How big is the Letsupuri 2024 MX main PCB?
It measures 114.3 × 76.2 mm and has 4 copper layers, 1.2 mm thick.
What parts does the Letsupuri 2024 MX main use?
93 parts, built around the RP2040 and W25Q128JVPIQ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Letsupuri 2024 MX main KiCad files?
From the Pekaso/letsupuri repository on GitHub, at the commit this page was made from: the board is hardware/PCB_main_MX/Letsupuri_2024_MX_main.kicad_pcb and its schematic hardware/PCB_main_MX/Letsupuri_2024_MX_main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Letsupuri 2024 MX main design in my own project?
Its repository states no licence, so its author keeps all rights: ask Pekaso before reusing the design.