HardLabs

Hackpad

Momentum122·Hackpad·PCB/smolpad.kicad_pcb

Hackpad PCB layout, top view — open source board by Momentum122

About the Hackpad PCB

Hackpad is an open source PCB design by Momentum122, published on GitHub. It is a 2-layer board measuring 95.3 × 88.4 mm, with 21 components from 5 distinct parts.

Other key parts include the MOUDLE-SEEEDUINO-XIAO and ER_OLEDM0.91_1x-I2C. By type, the board carries 10 switches, 9 diodes and 2 ICs.

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

From the project

SmolPad is an open-source, custom 3x3 mechanical macropad powered by the Seeed Studio XIAO RP2040 microcontroller. It features a 3x3 diode key matrix, an EC11 rotary encoder for volume control, and a 0.91" I2C OLED display for a plain text output (for now) , all housed in a custo

SmolPad is an open-source, custom 3x3 mechanical macropad powered by the Seeed Studio XIAO RP2040 microcontroller. It features a 3x3 diode key matrix, an EC11 rotary encoder for volume control, and a 0.91" I2C OLED display for a plain text output (for now) , all housed in a custom 3D-printed case running KMK Firmware .

3x3 Key Matrix: Direct-soldered MX mechanical switches with 1N4148 diodes . EC11 Rotary Encoder: Smooth volume adjustment and press-to-mute functionality. 0.91" I2C OLED Display: 128x32 resolution driven by the SSD1306 display controller displaying status information. Compact…

Main components on the Hackpad

MOUDLE-SEEEDUINO-XIAOER_OLEDM0.91_1x-I2C

Hackpad bill of materials (BOM)

21 components, 5 distinct parts.

QtyPartRefs
1
MOUDLE-SEEEDUINO-XIAO
U1
1
ER_OLEDM0.91_1x-I2C
U2
9
SW_Push_45deg
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +1
1
RotaryEncoder_Switch_MP
SW10
9
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +1

Hackpad design files

The KiCad project lives in the Momentum122/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 95.3 × 88.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hackpad?

21 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hackpad design files?

From the Momentum122/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 Momentum122. Use it as a reference, and ask the author before reusing the design.

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