I would like to have some suggestions and ideas regarding a small hack.
On a Pioneer CDJ200 there are 5 leds that turn on while a CD is on the tray.
I want to make those led to turn on in a sequence while the CD is actually play (maybe catch the play button as trigger).
I guess is something quite simple to do with a single chip and some resistor or transistor for regulate the speed of the leds.
The leds connection are simple to access, is just one ribbon cable (picture of the diagram attached).
I don’t know which chip could be used, or some other electronic component.
Any suggestion is welcome!