Ghostbusters proton gun 

This is an all-in-one ghost catcher. It has a PKE meter, proton pack, and ghost trap combined into one compact unit.
It is powered by a whole lot of small DIY circuits and an Arduino Nano (soon to be changed out to an Every to add some graphics to the screen).
There are two modes, manual and automatic. This is a demo of the automatic function, once the gun is locked on a target, it will do all of these in sequence without user intervention.
There are several other sounds and screen displays programmed into it, I'll upload another video showing all of them after I install the new processor.