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2 layers67.3 × 57.4 mmBug pad, the printed circuit board in 3D

A bug pad is a 4 arrow key micropad with a encoder for volume control , using this i can play hill climb racing hah.

Size
67.3 × 57.4 mm
Copper layers
2
Thickness
1.6 mm
Parts
11
Nets
14
Pads
45
Tracks, vias
79, 0
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
15 Sep 2026
Updated
18 Oct 2026

Overview

Bug pad is an open-source printed circuit board by ayush-bug, from the ayush-bug/bug-pad repository on GitHub. It is a 2-layer board of 67.3 × 57.4 mm with 11 parts on 14 nets, routed with 79 tracks and 0 vias.

Its parts include 5 switches and 2 ICs.

README

readme.md

BUGPAD

This is my first hardware project bugpad.

A 4 keys micropad to play hillclimb racing with and a rotatory encoder and a oled ,

built for hackclub hackpad mission.

bug-pad

View PCB on KiCanvas

About

This is a micropad , with 4 switches , 1 encoder and a oled display .

the switches work as a arrow key , encoder is for volume , and oled show which key is pressed .

So you can play hillclimb racing and chrome dino with this bug pad .

Features

  • four mechanical switches
  • a encoder for volume
  • a oled display
  • and a insane 3d case

CAD MODEL

first of all thanks to @Jacube1234 that help me a lot to learn cad in fusion 360 .

All cad design is made in fusion 360

cad model

the case is divided into 3 parts bottom , top and plate .

PCB

THE pcd is designed in kicad , also this is my first pcb design ,

it is quiet is then i thought .

i just started and sow some tutorials on yt and done this .

Schematic

pcb

Layout

layout

Final PCB

PCB

pcb-back

FIRMWARE

my bugpad usage qmk firmware

BILL OF MATERIAL (BOM)

  • 1 Unsoldered Seeed XIAO RP2040
  • 4x MX-Style switches
  • 1x EC11E Rotary Encoder
  • 4x M3x16mm screws
  • 1x 0.91 inch OLED display
  • custom pcb
  • custom 3d case

thanks note

thanks @Jacube1234 and nemo for you help it mean a lot , thanks a lot.

Made with love by Ayush

Parts

11
QtyValueFootprintReferences
4SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4
1ER_OLEDM0.91_1x-I2CDisplay:ER_OLEDM0.91_1x-I2CU2
1LOGOdemo.preety:github-logoG***
1LOGOdemo.preety:heisenbergG***
1LOGOdemo.preety:stardance-logoG***
1LOGOdemo.preety:bug-butterflyG***
1MOUDLE-SEEEDUINO-XIAOfootprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU1
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW5

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Questions

How big is the Bug pad PCB?

It measures 67.3 × 57.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Bug pad use?

11 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 Bug pad KiCad files?

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

Can I use the Bug pad design in my own project?

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