I wanted to keep going with my Hellboy belt project. A big part of that was the locator. I designed this model for it. You will need to add two small aluminum rods to the front and two on the sides. Once done it will go on any belt and stay. For mine I hollowed out the interior and created a switch to turn the light on and off. My son wanted me to make him Abe Sapien's locator as well (Or as he likes to call him the fish man..). So I thought it would be cool if the switch goes up one way the light goes red; the other way blue. I can provide wiring schematics if needed, but it is pretty simple. I made the switch out of some copper rods and laser cut a sheet of copper to make the contacts. Its a blank canvas enjoy. Below is a link to how mine works.

In this version: I have added an Arduino Pro Mini 328. I use this board to detect whom it wearing the tracker. If you have a beacon transmitting that you are Abe Sapien the light turns blue if you are Hellboy its red etc.

Jolly Making!

https://photos.app.goo.gl/j6IJ2jc5Mt5hPxQ52