I wanted to try making music with floppy drives connected to the GPIOs. If found this blog post of someone, doing the same:
http://blog.erikd.org/2012/12/24/making ... th-the-pi/
But as I'm not that familiar with electronics I'm quite careful. He connects the floppy drive's pins directly to the GPIOs which are configured as outputs, but there are 5V on the FDDs pins. Doesn't that damage the Pi or the GPIO controller? I thought the maximum they can handle is 3.3V. And wouldn't I have to power the Pi with the floppy drives power supply so that GND is the same?
Thanks in advance
