WPad 
Simple macropad with rotary encoder. This is my old project that I made 2 years ago to learn keyboard desing and play around with qmk firmware.

functionality
WPad offers 7 keys and rotary encoder, default keymap works mainly as a spotify and sound control device.
It is made with pro micro in mind and you might want to use supports on the bottom side because of the screws I used (M5 Cap head screws). You might wanna print this EC11 to switch adapter

https://www.thingiverse.com/thing:3770166

BOM

• 7x Diodes
• 6x Cherry mx style switches 
• 1x EC11 rotary encoder
• 1x Pro micro 
• 4x M5 8mm Cap head screws
• 6x Cherry mx compatible keycaps
• some wires, hot glue and of course 3D printer with your favourite filament

Pin assigment

QMK flashing and editing keymap

Firmware and all other files can be found on my github

https://github.com/kubek344/Wpad

And if you don't know how to start with qmk then I recommend you to read this newbs guide

https://docs.qmk.fm/#/newbs