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 layers88 × 90.3 mm
Keebdexpansion
emfcamp/Keebdexpansion2A keyboard hexpansion for the Tildagon badge using the solder.party KeebDeck Keyboard. Software for the hexpansion is provided by @sodoku.
- Size
- 88 × 90.3 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 30
- Nets
- 45
- Pads
- 463
- Tracks, vias
- 745, 109
- Pours
- 85
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Jun 2026
- Updated
- 11 Jun 2026
Overview
Keebdexpansion is an open-source printed circuit board by emfcamp, from the emfcamp/Keebdexpansion repository on GitHub, published under the MIT licence. It is a 2-layer board of 88 × 90.3 mm with 30 parts on 45 nets, routed with 745 tracks and 109 vias.
It is built around the AP3602AKTR-G1, TCA8418RTW and ZD24C64A-XGMT, with the XL-3210RGBC-2812B, SMTSO2020CTJ and CSA0603X5R106M6R3JT among its other parts. Its parts include 9 diodes, 5 resistors, 3 capacitors, 3 ICs and 2 connectors.
Main components
7
AP3602AKTR-G1
SOT-23-6-40℃~+85℃ 1 1.2MHz 100mA 2.7V~5V 4.8V~5.2V Boost DC-DC Over-Temperature Protection (OTP) SOT-23-6 LED Drivers ROHSDiodes IncorporatedLED Drivers
TCA8418RTW
WQFN-24-EP(4x4)-40℃~+85℃ 1.65V~3.6V 18 1MHz I2C Input anti-jitter、Keyboard matrix scanning Interrupt Output Open-drain WQFN-24-EP(4x4) I/O Expanders ROHSTexas InstrumentsI/O Expanders
ZD24C64A-XGMT
TSSOP-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 100 Years 1MHz 5ms 64Kbit Hardware write protection function、Noise suppression function、Built-in power-on reset (POR) I2C TSSOP-8 EEPROM ROHSZettaEEPROM
XL-3210RGBC-2812B
SMD-4P,3.2x1mmRGB LEDs(Built-In IC)XINGLIGHT
SMTSO2020CTJ
-M2X2 Tin plated - Patch round nut ROHSSinhooSMD Round Nut
CSA0603X5R106M6R3JT
060310uF 6.3V X5R ±20% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSHREMultilayer Ceramic Capacitors MLCC - SMD/SMT
TCC0402X5R105M6R3AT
04021uF 6.3V X5R ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSCCTCMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
README.mdKeebDeck Hexpansion
A keyboard hexpansion for the Tildagon badge using the solder.party KeebDeck Keyboard. Software for the hexpansion is provided by @sodoku.
Features
- Full layout keyboard
- RGB Backlit keys
- Type in text inputs
- Auto-installs driver when plugged in
Available for EMF 2026 camp ticket holders on the emfcamp website. See here for more info
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | XL-3210RGBC-WS2812B | tildagon:XL-3210RGBC-2812B | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 5 | 3k3 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5 |
| 5 | SMTSO2020CTJ | frontplate:SMTSO2020CTJ | H2, H4, H5, H6, H7 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H3 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | AP3602A | Package_TO_SOT_SMD:TSOT-23-6_HandSoldering | U3 |
| 1 | Conn_01x04_Socket | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | Hexpansion-Connector | tildagon:hexpansion-edge-connector | J2 |
| 1 | TCA8418 | Package_DFN_QFN:WQFN-24-1EP_4x4mm_P0.5mm_EP2.45x2.45mm | U1 |
| 1 | ZD24C64A-XGMT | Package_SO:TSSOP-8_4.4x3mm_P0.65mm | U2 |
| 1 | ~ | keyboard:keyboard_arturo182 | K1 |
Questions
How big is the Keebdexpansion PCB?
It measures 88 × 90.3 mm and has 2 copper layers, 1 mm thick.
What parts does the Keebdexpansion use?
30 parts, built around the AP3602AKTR-G1, TCA8418RTW, ZD24C64A-XGMT and XL-3210RGBC-2812B. 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 Keebdexpansion KiCad files?
From the emfcamp/Keebdexpansion 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 Keebdexpansion 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).
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