Holder for SparkFun MP3 Trigger RobertSonic

Designed for the SparkFun / Robertsonics MP3 Trigger, this holder gives the board a clean, secure, and compact mounting solution for robotics and custom electronics projects. I made it for my R2D2 build, where I wanted something simple, solid, and easy to integrate without enclosing the board in a bulky case.

The design uses an X-shaped rear support that keeps the MP3 Trigger firmly in place while leaving the board largely accessible. That means you still have easy access to the key areas of the module for wiring, integration, and maintenance, while giving it proper support once installed in the droid.

To make assembly straightforward and reliable, the model uses:

• 4x heat-set threaded inserts M3, OD 4.5 mm, H 3 mm
• 4x M3 x 4 mm screws

The holder can simply be glued onto any flat surface, which makes it very convenient to position inside a robot or droid. Once installed, the board can be removed just by unscrewing it, which is very practical for maintenance, replacement, or wiring changes without having to remove the whole support.

This is a practical holder for anyone using the SparkFun MP3 Trigger / Robertsonics MP3 Trigger in a droid, robot, prop, animatronic, or custom audio project. It is especially useful when you want a mounting solution that is lightweight, minimal, and efficient rather than a full enclosure.

I designed it with real-world use in mind: quick installation, solid board retention, low material usage, and a clean result inside the project.