MediaPad HC

MediaPad

Overview

• The MediaPad is a macropad made for the Hackclub program Hackpad.
• The macroboard features multiple buttons to control Youtube-based media, including functions such as going to the previous video, rewinding, pausing, skipping 5 seconds, and going to the next video.
• Additionally, there is a rotary encoder to control the volume, and pressing it allows the volume to be locked to prevent accidental changes.
• Similarly, a board-lock button exists to lock the keys that move to a different video, allowing only the inputs related to volume or time changing within the current video
• Features an LED that could be used for debugging or other purposes if neccessary
  *Note that the Models folder is for models used in the KiCad PCB rendering

Demo

https://vimeo.com/1098898996

Case

• Includes a plate for switch stability, and everything is held together by M3 screws with threading in the plastic through the 3D-printed parts, but not the PCB
• Plate is top-mounted
• Also includes a cover for the rotary encoder for visuals and use

PCB

Schematic:

Front:

Back:

Nothing to see here (except traces)

Firmware

• Uses KMK with CircuitPython, as included in the code folder. Only the custom code is included in the production folder.

Lessons Learned

• First time using Fusion!!!!!
• Learned a lot about keyboards and how they work, a full-sized keyboard would 100% be made in the future
• Learned how to add models to PCB
• Learned a lot about 3D modeling

BOM

• (1) PCB
• (1) EC11 Rotary Encoder
• (1) Rotary Encoder Cap (3D printed part)
• (1) Case Bottom
• (1) Case Top
• (1) Case Plate
• (8) M3x16MM Screws
• (1) XIAO RP2040
• (6) Cherry MX Switches
• (6) DSA Keycaps
• (1) SK6812 MINI-E LED