2 layers304.9 × 120.7 mm Keyboard75, the printed circuit board in 3D

Keyboard75

Keyboard Project with PCB design. 75% layout

Size: 304.9 × 120.7 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 386
Nets: 231
Pads: 1,882
Tracks, vias: 3,801, 391
Pours: 4
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 17 Oct 2023
Updated: 25 Nov 2023

Overview

Keyboard75 is an open-source printed circuit board by benzooku, from the benzooku/comp75 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 304.9 × 120.7 mm with 386 parts on 231 nets, routed with 3,801 tracks and 391 vias.

It is built around the E73-2G4M08S1C, BQ24075RGT and SN74LVC1T45DBV, with the CC0603KRX7R9BB104, WS2812C and AO3401A among its other parts. Its parts include 172 diodes, 94 capacitors, 86 switches, 11 resistors and 4 ICs.

Main components

README

README.md

comp75

Keyboard Project with PCB design. 75% layout

Parts

386

Qty	Value	Footprint	References
87	100n	Capacitor_SMD:C_0603_1608Metric	C27, C28, C100, C101, C102, C103, C104, C105, C106, C107, C108, C109, C110, C111, C113, C115 +71
85	D	Diode_SMD:D_SOD-123F	D0_0, D0_1, D0_10, D0_11, D0_12, D0_13, D0_101, D0_102, D0_103, D0_104, D0_105, D0_106, D0_107, D0_108, D0_109, D0_110 +69
85	SK6812MINI-E	KiCad:SK6812MINIE	D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +69
75	KEYSW	kailh-sockets:SW_Cherry_MX_1.00u_PCB	K0_0, K0_1, K0_2, K0_3, K0_4, K0_5, K0_6, K0_7, K0_8, K0_9, K0_10, K0_11, K0_12, K0_13, K0_14, K0_15 +59
11	3.5mm ID	MountingHole:MountingHole_3.5mm	H1, H2, H3, H4, H5, H6, H7, H8, H9, H11, H12
4	KEYSW	kailh-sockets:SW_Cherry_MX_1.25u_PCB	K4_0, K5_0, K5_1, K5_2
3	10k	Resistor_SMD:R_0402_1005Metric	R6, R7, R8
3	4.7uF	Capacitor_SMD:C_0603_1608Metric	C14, C24, C25
2	2M	Resistor_SMD:R_0603_1608Metric	R3, R12
2	5.1k	Resistor_SMD:R_0603_1608Metric	R9, R10
2	5K1	Resistor_SMD:R_0603_1608Metric	R13, R14
2	KEYSW	kailh-sockets:SW_Cherry_MX_1.75u_PCB	K3_0, K4_12
2	PTH	Connector_Wire:SolderWire-1sqmm_1x01_D1.4mm_OD2.7mm	J4, J5
1	100nF	Capacitor_SMD:C_0603_1608Metric	C3
1	10M	Resistor_SMD:R_0603_1608Metric	R4
1	10nF	Capacitor_SMD:C_0603_1608Metric	C19
1	10uH	Inductor_SMD:L_0603_1608Metric	L4
1	1uF	Capacitor_SMD:C_0603_1608Metric	C23
1	2N7002	Package_TO_SOT_SMD:SOT-23	Q1
1	3.9k	Resistor_SMD:R_0402_1005Metric	R1
1	4.7uF	Capacitor_SMD:C_0402_1005Metric	C26
1	500mA hold	Fuse:Fuse_0402_1005Metric	F1
1	AO3401A	Package_TO_SOT_SMD:SOT-23	Q2
1	BQ24075RGT	Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm	U2
1	E73-2G4M08S1C	librarys:E73-2G4M08S1C	U6
1	ESDR0502NMUTAG	footprints2:UDFN-6_1.2x1.0mm_P0.4mm	U5
1	KEYSW	kailh-sockets:SW_Cherry_MX_1.50u_PCB	K2_0
1	KEYSW	kailh-sockets:SW_Cherry_MX_6.25u_PCB	K5_3
1	KEYSW	kailh-sockets:SW_Cherry_MX_2.00u_PCB	K1_13
1	KEYSW	kailh-sockets:SW_Cherry_MX_ISOEnter_PCB	K2_13
1	ORANGE	LED_SMD:LED_0603_1608Metric	D3
1	PMEG4010CEJ	Diode_SMD:D_SOD-123F	D5
1	RESET	Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2	SW1
1	SN74LVC1T45DBV	Package_TO_SOT_SMD:SOT-363_SC-70-6	U4
1	SWD	Connector_PinHeader_1.00mm:PinHeader_1x05_P1.00mm_Vertical	J2
1	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV	J1

Questions

How big is the Keyboard75 PCB?

It measures 304.9 × 120.7 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keyboard75 use?

386 parts, built around the E73-2G4M08S1C, BQ24075RGT, SN74LVC1T45DBV and CC0603KRX7R9BB104. 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 Keyboard75 KiCad files?

From the benzooku/comp75 repository on GitHub, at the commit this page was made from: the board is schematic/keyboard75.kicad_pcb and its schematic schematic/keyboard75.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keyboard75 design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/benzooku-comp75" title="Keyboard75 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/benzooku-comp75.jpg" alt="Keyboard75" width="1200" height="900">

A picture that opens the board, for a README

[![Keyboard75](https://pcbkit.io/embed/boards/benzooku-comp75.jpg?size=s)](https://pcbkit.io/boards/benzooku-comp75)

Source

Repository: benzooku/comp75
Board file: schematic/keyboard75.kicad_pcb
Commit: 4666a1f
Licence: GPL-3.0

Similar boards

2 layers385 × 127.3 mm
Keyboard
kitspace-test-repos/kicad6-file-collection

312 partsMIT
4 layers278 × 93.5 mm
Corne cherry
yangxing844/corne-wireless
corne-like wireless keyboard, WIP
244 parts3GPL-3.0
4 layers145.5 × 107.5 mm
Corne cherry
yangxing844/keyboard
this stores some of my files for keyboards building
208 parts1
2 layers429.6 × 540.7 mm
Keyboard
joshajohnson/louise
A project between Josh and RiotPunch to build a 75% alice keyboard with a southpaw numpad.
327 parts5
4 layers95 × 50 mm
VFD tool
Haxintosh/VFD-tool
A modular multitool designed for engineers with a VFD screen (WIP!!!!!!!)
177 partsMIT
4 layers75.2 × 75.2 mm
Module1b
logaan/qbf-keyboard
QBF keyboard — handwired macropad design, firmware diagnostics and wiring tooling
83 parts
4 layers18 × 33.3 mm
Zhiayang mikoto mikoto
punkfab/pcb-corpus
235 real KiCad boards from open-source hardware repositories, prepared as a placement and routing benchmark
67 parts1
4 layers58 × 35 mm
ESP HI PLUS
dyu134/ESP-HI-PLUS
The Robot sub-module is a high-performance actuator and sensing expansion board for the ESP-HI-PLUS, designed to transform the device into a mobile or interactive robotic platform.
88 parts