HardLabs

Hackpad

javinwittig·Hackpad·pcb/Schaltplatte_6_Tasten.kicad_pcb

Hackpad PCB layout, top view — open source board by javinwittig

About the Hackpad PCB

Hackpad is an open source PCB design by javinwittig, published on GitHub. It is a 2-layer board measuring 59.5 × 100 mm, with 20 components from 4 distinct parts.

Other key parts include the MOUDLE-SEEEDUINO-XIAO. By type, the board carries 9 switches, 9 diodes, 1 IC and 1 connector.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

I made a custom 9-key macropad in a 3×3 layout, built with a Seeed Studio XIAO (SAMD21). Each switch has its own diode, wired as a 3×3 key matrix. It also features a small OLED display.

I made a custom 9-key macropad in a 3×3 layout, built with a Seeed Studio XIAO (SAMD21). Each switch has its own diode, wired as a 3×3 key matrix. It also features a small OLED display.

- 9 mechanical keys in a 3×3 grid where each has its own diode - Seeed Studio XIAO (SAMD21) as the controller - small OLED display - Custom KiCad PCB - Custom case modeled in Fusion 360, with cutouts for USB-C and the display header - Firmware based on KMK (CircuitPython)

Hackpad, from the project README
From the project README

Main components on the Hackpad

MOUDLE-SEEEDUINO-XIAO

Hackpad bill of materials (BOM)

20 components, 4 distinct parts.

QtyPartRefs
1
MOUDLE-SEEEDUINO-XIAO
U1
1
Conn_01x04
J1
9
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +1
9
1N914
D1, D2, D3, D4, D5, D6, D7, D8 +1

Hackpad design files

The KiCad project lives in the javinwittig/Hackpad repository on GitHub; these links point at the commit this page was built from.

Hackpad: common questions

How big is the Hackpad PCB?

The Hackpad measures 59.5 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hackpad?

20 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hackpad design files?

From the javinwittig/Hackpad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Hackpad design in my own project?

The repository has no license, so all rights stay with javinwittig. Use it as a reference, and ask the author before reusing the design.

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