Floppy music DUO – La marcia imperiale

Non credo servano grosse descrizioni oltre il titolo, è “semplicemente” la Marcia Imperiale di Star Wars suonata facendo muovere ad una precisa velocità la testina mobile di due diversi lettori di Floppy Disk.

Se volete qualche info tecnica, mi limito a copia/incollare direttamente in inglese per evitare strafalcioni:

How does it work?
It’s nothing new and it’s very simple. The sound comes from a magnetic head moved by stepper motor. To make a specific sound, head must be moved with appropriate frequency.
FDD has a simple interface – the description may be found for example [HERE]. To move the head you need to activate the drive by pulling the DRVSB0 or 1 (depends on the cable you have and the connector – notice the crossover on the FDD ribbon cable) pin low and then falling edge on STEP pin makes the head move one step in direction dependent on DIR pin state.
An ATMega microcontroller is generating those frequencies and it makes the drives play music.

Fonte: silent.it.cx