Orpheuspad

Orpheuspad is a 4 key macropad with a rotary encoder, an OLED Display. It also has 2 WS2812B Leds, and uses QMK firmware

It serves as an example piece/reference for the hackpad YSWS, since it contains an implementation of every common part.

Features:

Dual layer acrylic case. looks looks awesome doesn't it??
128x32 OLED Display
EC11 Rotary encoder for whatever you want
2 WS2812B RGB LEDs. One for underglow, and one that diffuses throughout the case
4 Keys
VIA support!

CAD Model:

Everything fits together using 5 M3 Bolts and heatset inserts. 4 for the case, one for the PCB. Also, it has a 5 degree tilt

It has 3 separate printed pieces. The angle, the base where the PCB sits, and the top cover. it also has 2 acrylic plates. One to cover the electronics, the other to hold the switches

Made in Fusion360. Nifty

PCB

Here's my PCB! It was made in KiCad. The silkscreen was imported from a Figma image.

Schematic

PCB Schematic

I used MX_V2 for the keyswitch footprints. I think in retrospect, I should've added a ground plane

Firmware Overview

This hackpad uses QMK firmware for everything.

the rotary encoder changes volume. press to mute
The 4 keys currently act as macros I dynamically change in VIA.
The OLED is a cat!! Bongocat!! :3

I might add more in the future! That's it for now

BOM:

Here should be everything you need to make this hackpad

4x Cherry MX Switches
4x DSA Keycaps
5x M3x5x4 Heatset inserts
3x M3x16mm SHCS Bolts
2X M3x12mm SHCS Bolts
5x 1N4148 DO-35 Diodes.
2x WS2812B LEDs
1x 0.91" 128x32 OLED Display
1x EC11 Rotary Encoder
1x XIAO RP2040
1x Case (3 printed parts, 2 laser cut parts)

Extra stuff

Honestly I'm not quite too sure what to add here. Favourite meme? a joke?? Uhhh you can imagine it

Oh fun fact: I built mine in SF the day before github universe LOL

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