Well here will simply be a link to my other small “fun” things that can be connected to Amiga etc..
TestLED Board
This little board is a small board so you can push into the amiga to simply show the power/floppy/HDD led activity. no need for a cable or so. one board to cover them all. (except maybe A1000)
gerbers: https://reamiga.info/webfiles/xtra/TestLED.zip