2 layers88 × 90.3 mm KeebDeckHexpansion, the printed circuit board in 3D

KeebDeckHexpansion

A Keyboard Hexpansion using the solder.party KeebDeck Keyboard

Size: 88 × 90.3 mm
Copper layers: 2
Thickness: 1 mm
Parts: 39
Nets: 47
Pads: 468
Tracks, vias: 492, 83
Pours: 121
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 20 Nov 2025
Updated: 30 May 2026

Overview

KeebDeckHexpansion is an open-source printed circuit board by davedarko, from the davedarko/KeebDeckHexpansion repository on GitHub, published under the MIT licence. It is a 2-layer board of 88 × 90.3 mm with 39 parts on 47 nets, routed with 492 tracks and 83 vias.

It is built around the TCA8418RTW, ZD24C64A-XGMT and 1N5819WS. Its parts include 10 diodes, 7 resistors, 3 ICs, 2 capacitors and 2 connectors. It belongs with the keyboards and input boards of this library.

Main components

README

README.md

Keebdexpansion

A keyboard hexpansion for the Tildagon badge using the solder.party KeebDeck Keyboard. Software for the hexpansion is provided by @sodoku.

Keepdexpansion V1 connected to the Tildagon

Features

Full layout keyboard
RGB-Backlit keys
Type in text inputs

Parts

Qty	Value	Footprint	References
8	LED	keyboard_leds:LTW-010DCG	D2, D3, D4, D5, D6, D7, D8, D9
8	MountingHole_Pad	MountingHole:MountingHole_2.2mm_M2_Pad_Via	H1, H2, H3, H4, H5, H6, H7, H8
5	3k3	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2, R3, R6, R7
3	TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP1, TP2, TP3
2	SolderJumper_2_Bridged	Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm	JP1, JP2
1	100k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R5
1	10uF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1
1	1N5819WS	Diode_SMD:D_SOD-323	D10
1	1uF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C2
1	20R	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4
1	6.8uH	Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder	L1
1	AP3032AKTR	Package_TO_SOT_SMD:SOT-23-6	U2
1	Conn_01x04_Socket	Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal	J2
1	Hexpansion-Connector	tildagon:hexpansion-edge-connector	J1
1	LED	LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D1
1	TCA8418	TCA8418RTWR:QFN50P400X400X80-25N	U1
1	ZD24C64A-XGMT	Package_SO:TSSOP-8_4.4x3mm_P0.65mm	U4
1	~	keyboard:keyboard_arturo182	K1

Questions

How big is the KeebDeckHexpansion PCB?

It measures 88 × 90.3 mm and has 2 copper layers, 1 mm thick.

What parts does the KeebDeckHexpansion use?

39 parts, built around the TCA8418RTW, ZD24C64A-XGMT and 1N5819WS. 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 KeebDeckHexpansion KiCad files?

From the davedarko/KeebDeckHexpansion repository on GitHub, at the commit this page was made from: the board is KiCad/main/main.kicad_pcb and its schematic KiCad/frontplate/frontplate.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the KeebDeckHexpansion 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).

Category and platform

Keyboards and input

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/davedarko-keebdeckhexpansion" title="KeebDeckHexpansion 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/davedarko-keebdeckhexpansion.jpg" alt="KeebDeckHexpansion" width="1200" height="900">

A picture that opens the board, for a README

[![KeebDeckHexpansion](https://pcbkit.io/embed/boards/davedarko-keebdeckhexpansion.jpg?size=s)](https://pcbkit.io/boards/davedarko-keebdeckhexpansion)

Source

Repository: davedarko/KeebDeckHexpansion
Board file: KiCad/main/main.kicad_pcb
Commit: 36b9bc2
Licence: MIT

Similar boards

2 layers88 × 90.3 mm
Keebdexpansion
emfcamp/Keebdexpansion
A keyboard hexpansion for the Tildagon badge using the solder.party KeebDeck Keyboard. Software for the hexpansion is provided by @sodoku.
30 parts2MIT
2 layers50.8 × 38 mm
Googly eye hexpansion
emfcamp/badge-2024-addons
Addons for the EMF 2024+ Badges
15 parts18CERN-OHL-P-2.0
2 layers56 × 36.6 mm
Codemyriad protogon
codemyriad/protogon
Protogon: a protoboard hexpansion for the EMF Camp badge
14 parts3CERN-OHL-P-2.0
2 layers33.7 × 36.6 mm
Hexpansion
MatthewWilkes/ir-hexpansion
A Hexpansion for infrared signals
21 parts3CERN-OHL-P-2.0
2 layers88 × 46 mm
Hexpansion
MatthewWilkes/uk-map-hexpansion

131 parts3
2 layers56.8 × 36.6 mm
Hexpansion
gchq-net/hexpansion_hardware
Hardware for the hexpansions
14 parts2CERN-OHL-P-2.0
2 layers192.4 × 50 mm
Omote
OMOTE-Community/OMOTE-Hardware
Open Source Remote - Hardware
187 parts157GPL-3.0
2 layers97.2 × 81.3 mm
Radiotxt
AnthonyDiGirolamo/i2c-thumb-keyboard
Handheld tactile switch keyboard using the TCA8418.
85 parts30MIT