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2 layers95 × 63.5 mmHackPadAryan, the printed circuit board in 3D

A simple macropad consisting of 4 MX Switches, a Rotary Encoder and an OLED Display. It uses QMK firmware and implements many common macros that can be customized with code.

Size
95 × 63.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
9
Nets
14
Pads
46
Tracks, vias
94, 0
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
9 Jun 2026
Updated
9 Jul 2026

Overview

HackPadAryan is an open-source printed circuit board by epicninja3, from the epicninja3/EpicMacroPad repository on GitHub. It is a 2-layer board of 95 × 63.5 mm with 9 parts on 14 nets, routed with 94 tracks and 0 vias.

Its parts include 5 switches and 2 ICs. It belongs with the keyboards and input and lEDs and displays boards of this library.

README

README.md

EpicMacroPad

A simple macro pad consisting of 4 MX Switches, a Rotary Encoder, and an OLED Display. It uses QMK firmware and implements a few common macros that can be customized with code. Also, my first ever project!

Components:

  1. An EC11 Rotary Encoder that is used to control volume, brightness, etc.
  2. A 128x32 OLED Display for information or other fun animations.
  3. 4 MX Switches that run certain macros and functions.

PCB:

PCB was designed in KiCAD.

PCB:

image

Schematic:

image

CAD/CASE:

I made a case for the macro pad in Fusion 360. The case has three main parts: a bottom base, a plate, and a top cover.

image

Firmware and Functions:

The four switches perform functions such as Copy, Paste, and taking a Screenshot. Additionally, pressing down on one of the switches changes the layer, allowing for a greater range of functions.

The rotary encoder controls volume by twisting it.

BOM:

  1. 1x Seeeduino XIAO RP2040
  2. 4x MX Switches
  3. 1x EC11 Rotary Encoders
  4. 1x 0.91" OLED Display
  5. 4x M3x16mm screws

Parts

9
QtyValueFootprintReferences
4SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW2, SW3, SW4, SW5
1ER_OLEDM0.91_1x-I2CDisplay:ER_OLEDM0.91_1x-I2CU2
1LOGOF1carlibrary:f1car2G***
1MOUDLE-SEEEDUINO-XIAOkicad_care_package:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU1
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW1

The 8 most common of 9 parts.

Questions

How big is the HackPadAryan PCB?

It measures 95 × 63.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the HackPadAryan use?

9 parts. 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 HackPadAryan KiCad files?

From the epicninja3/EpicMacroPad repository on GitHub, at the commit this page was made from: the board is PCB/HackPadAryan.kicad_pcb and its schematic PCB/HackPadAryan.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the HackPadAryan design in my own project?

Its repository states no licence, so its author keeps all rights: ask epicninja3 before reusing the design.

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