I'm sorry for the intro, but YouTube does not allow me to delete it because the video has too many views, the intro ends at 0:43.
Thanks for understanding.
1 x ATX power supply
2 x Arduino UNO
12 x Floppy disk drives
... and more other recovery material, an old PC, cables etc ...
The software is written in Java, and uses the RxTxComm library to send data to the Arduino, which in turn sends the signals to the floppies.
Further info on www.dslak.it
Source and schemas on gitlab.com/dslak/moppy