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4 layers370 × 155 mmPiKeyboard, the printed circuit board in 3D

PiKeyboard

SaltyMelonYT/PCB-Projects

I'm a nerd

Full screenGitHub.kicad_pcb
Size
370 × 155 mm
Copper layers
4
Thickness
1.6 mm
Parts
157
Nets
266
Pads
862
Tracks, vias
555, 168
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
30 Sep 2025
Updated
22 Jul 2026

Overview

PiKeyboard is an open-source printed circuit board by SaltyMelonYT, from the SaltyMelonYT/PCB-Projects repository on GitHub, published under the MIT licence. It is a 4-layer board of 370 × 155 mm with 157 parts on 266 nets, routed with 555 tracks and 168 vias.

It is built around the RT9742SNGV. Its parts include 74 diodes, 74 switches, 4 capacitors, 2 connectors and 1 IC. It belongs with the RP2040 and Raspberry Pi (Linux) boards of this library.

Main components

1

README

README.md

I'm a nerd

Incase that wasn't obvious haha. Here is a repository of a bunch of PCB's I've made, from a heart lightboard for your lover (It works) to lampnodes that connect to a central server!

Parts

157
QtyValueFootprintReferences
74D_SmallDiode_SMD:D_0402_1005Metric_Pad0.77x0.64mm_HandSolderD1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +58
59SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00uSW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +43
7SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.25uSW67, SW68, SW69, SW71, SW72, SW73, SW74
2100nCapacitor_SMD:C_0402_1005MetricC12, C13
2C_SmallCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1, C2
2SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.50uSW28, SW41
2SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_2.00uSW27, SW55
1690-019-298-412Connector_Video:HDMI_A_Amphenol_10029449-x01xLF_HorizontalJ22
1ComputeModule5-CM5CM5:Raspberry-Pi-5-Compute-ModuleModule1
1RT9742SNGVPackage_TO_SOT_SMD:TSOT-23_HandSolderingU12
1RaspberryPi_PicoModule:RaspberryPi_Pico_SMDA1
1SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_3.00uSW66
1SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.75uSW42
1SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_6.25uSW70
1SW_PushPCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_2.25uSW54
1USB_C_Receptacle_PowerOnly_6PConnector_USB:USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_HorizontalJ2

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Questions

How big is the PiKeyboard PCB?

It measures 370 × 155 mm and has 4 copper layers, 1.6 mm thick.

What parts does the PiKeyboard use?

157 parts, built around the RT9742SNGV. 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 PiKeyboard KiCad files?

From the SaltyMelonYT/PCB-Projects repository on GitHub, at the commit this page was made from: the board is PiKeyboard/hardware/hardware.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the PiKeyboard design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).