# sugarpad

A versatile macropad powered by the RP2040 (Seeed Studio Xiao RP2040)

![complete](/images/cad-case.png)
![gif](/images/sugarpad%20case%20v8.gif)

The sugarpad is powered by QMK (with VIA support).
sugarpad is a 11-key macropad with a rotary encoder (with built in switch) and an OLED screen.

The sugarpad is part of Hackclub's [Hackpad project](https://hackpad.hackclub.com/)!

## Firmware
With VIA, you can easily switch out the keymap of the macropad and record macros.

By default the 1st layer is a numpad, the rotary encoder play/pauses music and changes volume.
The keys under the encoder switch layers.

There are a total of 4 layers. 2nd and 3rd layers are F0-F21 and the final layer is unmapped.

By default the OLED screen shows the layer you are on.

## PCB
The PCB was built with KiCad.

![pcb](/images/pcb.png)
![pcb-no-silkscreen](/images/pcb-no-silkscreen.png)
![schematic](/images/schematic.png)
![pcb-step](/images/cad-pcb.png)


## Case
The case can be printed in 3 parts - the bottom, the plate and the top. 
The case uses 4 M3x16 screws and 4 M3x5x4mm heatset inserts.

![case](/images/cad-case.png)
![gif](/images/sugarpad%20case%20v8.gif)
![render](/images/render.png)

Small amount of supports are required (USB-C hole, heatset insert holes)

## BOM
- 1x Seeed Studio Xiao RP2040
- 1x EC11E Rotary Encoder (switch built in)
- 1x rotary Encoder Knob (can also be printed)
- 1x 0.91" SSD1306 OLED screen
- 11x Cherry MX style switches
- 11x Blank DSA keycaps
- 12x DO-35 diodes (THT)

## Case
- 4x M3x16mm socket head bolts
- 4x M3x5x4mm heatset inserts
- 1x top_case.step
- 1x plate.step
- 1x bottom_case.step