Slab Keyboard - Hackpad Module

headblockhead·slab-pcb·interchange-pcb-hackpad/interchange-pcb-hackpad.kicad_pcb

Slab Keyboard - Hackpad Module layout, top view — open source board by headblockhead

About the Slab Keyboard - Hackpad Module

Slab Keyboard - Hackpad Module is an open source PCB design by headblockhead, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 125.2 × 95 mm, with 101 components from 15 distinct parts.

Other key parts include the PCA9555PW and TCA4307DGKR. By type, the board carries 33 capacitors, 29 LEDs, 9 resistors, 5 connectors, 4 ICs and 1 buzzer.

It belongs with the keyboards designs in this gallery.

From the project

The circuitboard and schematics for the Slab Keyboard system.

The full PCB, schematics, and gerber downloads for the Slab keyboard project.

- The layer User.3 stores non-polygon versions of the silkscreen text elements that can be edited. - The layer User.6 stores a printable outline of keyswitch locations, so a keymap can be drawn on paper to test the layout.

This project uses Nix for CI/CD only, to generate gerber files using KiCAD's CLI.

Main components on the Slab Keyboard - Hackpad Module

PCA9555PW TCA4307DGKR

Slab Keyboard - Hackpad Module bill of materials (BOM)

101 components, 15 distinct parts.

Qty	Part	Footprint	Refs
2	PCA9555PW	TSSOP-24_4.4x7.8mm_P0.65mm	U2, U3
1	—	SN74AHCT125PWR	U5
1	TCA4307DGKR	SOIC8_DGK_TEX	U6
1	Conn_01x04	MagneticSlot_Right	J1
1	Conn_01x04	MagneticSlot_Left	J2
1	TRRS_L	Jack_3.5mm_KoreanHropartsElec_PJ-320D-4A_Horizontal	J3
1	TRRS_R	Jack_3.5mm_KoreanHropartsElec_PJ-320D-4A_Horizontal	J4
1	SSD1306	SSD1306_128x32	J5
1	Buzzer	buzzer	BZ1
20	MX_SW_HS	SW_choc_mx_combined	MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +12
20	MX_SK6812MINI-E	LED_MX_6028R-ROT_Custom	LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +12
9	MX_SK6812MINI-E	LED_6028R_Custom	LED21, LED22, LED23, LED24, LED25, LED26, LED27, LED28 +1
33	100nF	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C2, C3, C4, C5, C6, C7, C8 +25
6	2.2k	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2, R7, R8, R9, R10
3	10k	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3, R4, R6

Slab Keyboard - Hackpad Module design files

The KiCad project lives in the headblockhead/slab-pcb repository on GitHub; these links point at the commit this page was built from.

Slab Keyboard - Hackpad Module: common questions

How big is the Slab Keyboard - Hackpad Module?

The Slab Keyboard - Hackpad Module measures 125.2 × 95 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Slab Keyboard - Hackpad Module?

101 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Slab Keyboard - Hackpad Module design files?

From the headblockhead/slab-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Slab Keyboard - Hackpad Module design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which headblockhead chose for the repository.

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