I started building a NAS from my old hard drives and got a Raspberry Pi as server. Then all the wires and everything was just laying around randomly and I thought that I should make a nice case for it.
First, I wanted to reuse old hifi equipment for that, but I couldn't find any cheap and broken device to salvage.
So I decided to get a custom made laser cut case and thought how I can add some nice elements that are not only decorative, but also having some extended functionality.
I like analog devices. Big nobs, needles, and there like, so I came up with the thought of adding some VU Meters to the case to have my system activity monitored.
Beginner Friendly Tutorial
If you go to the instructions section, you can find a full step-by-step guide that explains the whole process.
When I was finally done with the whole project, I thought that I should document it. And because it touches on so many different subjects (electronics, python, interfacing, GPIOs, PWM, etc), I thought I can make it as beginner friendly as possible.
I got the basic know how on reusing old meters from the Post Apocalyptic Inventor, you can watch his video here: