hackpad/hackpads/jankpad

Janky Macropad

This is my hackpad submission!

It features a 128x32 OLED display, 16 MX switches, and a rotary switch, the case is seperated into two three parts connected by screws

kicad library files

MX_V2

OPL_Kicad_Library

KiCad-SSD1306-0.91-OLED-4pin-128x32.pretty

kicad 3d models

models

Pretty PCB Pictures

A 4x4 keyboard matrix is used to support 16 keys. An IO extender is used to give the XIAO enough pins to connect to the matrix and other components

BOM

Keyboard

• 16 MX-Style Switches
• 16 Keycaps
• 1 EC11 Rotary encoder

Case

3d prints @ production/case

• bottom.stl
• middle.stl
• top.stl

Misc

• 5 M3x16mm screws
• 10 M3x5mx4mm heatset inserts

Electronics

• PCB
• 1 Seeed XIAO RP2040 SMD
• 16 1N4148 Diodes
• 16 SK6812 LEDs
• 1 MCP23017
• 0.96 inch OLED

Background

I haven't every played with kicad or pcb design before, so this project presented the perfect oppurtunity for me to do just that! I wanted to challenge myself by trying to route as many components as possible on my pcb, and so my first Jankpad had almost every item in the approved list.

I tried doing this in one all nighter and I think I've gone insane, it's okay though because I have a really cool looking numpad design now :D

Jankpad V3 managed to slim down the design at the cost of a rotary encoder, as I learned that I could place components on the back side of the board.

I'm pretty proud of Jankpad V3, and it baffles me that I was able to go from never having touched kicad to having designed my own macropad from scratch in a span of two days