Adding Indicator Lights to my 3D Printer [Prusa]

I got sick of not knowing exactly what's going on inside my 3D Printer's enclosure without opening it - so I integrated a Stack Indicator light, a USB relay

3. CoreXY & Back assembly

How I designed a light bar for the Prusa MK4

Custom Lights - Prusa I3 MK3 (Free CAD files!)

410 ideas de Electromecánica ingenieria robotica, hacer un robot, domótica arduino

Industrial Stack Light Keeps An Eye On Prusa Mini

MMU2S LEDs meaning Prusa Knowledge Base

Status LED explained (MK4/XL)

electronic kredse

Lights and 3D printing: contest evaluation with tips for modern 3D printed lighting - Original Prusa 3D Printers

The Best Prusa i3 MK3S/MK3S+ Upgrades