Hello everyone fellow canadian here!

I'm a huge noob when it comes to electronics and I want the easiest way I can detect dice rolls and only "dice" "rolls" in a tray I want to make, so I can turn on lights once the rolling stops.

for starters, I modeled a tray that I incorporated some LED strips in. there will be dice sitting in this tray at all time on random positions, and I want to grab said dice, roll said dice in tray, once and only once the roll comes to a stop I want to have the lights turn on.

for this I have to be able to either detect only "rolling dice" so I can activate lights on the falling edge.or a combo of "general motion in the tray" "hand motion in tray" so I can subtract these and be able to detect the motion of moving dice, or any other combo that works.

I had a few approaches but none of them seem to be feasible.

A grid of lasers cant be there because the tray will be bulky on sides.
A PIR sensor detects general motion but its very very inconsistent (add to that the fact that I have to restrict the PIR sensor's vision so it doesnt detect motion outside of tray).
I was thinking of piezoelectrics, but those seem to be very small. force sensors are also very non sensitive (dice are not heavy) and the sensor will need to be under a sheet of leather.
A microphone was my other idea which will pick other sounds up as well.

TLDR: any idea on how I can detect the roll of a dice, and only the roll of a dice not any other movement or sound would be greatly appreciated!