Don’t forget floppy drives
You can also make hard drive heads play music. Poor quality music, but music.
Multiple piezoelectric buzzers could probably play a tune if you tune them to individual notes. Not sure how to tune them, but probably cutting them, or putting bluetak on them would alter their note.
slazer2au@lemmy.world 18 hours ago
CameronDev@programming.dev 18 hours ago
Never tried floopy drives, good acoustics?
slazer2au@lemmy.world 18 hours ago
Have you not seen Flopatron?
Apologies for the YouTube link but I don’t think he posts things anywhere else.
CameronDev@programming.dev 18 hours ago
Never seen it before, never been so happy getting rickrolled :D
ageedizzle@piefed.ca 15 hours ago
How does this work?
CameronDev@programming.dev 14 hours ago
A basic speaker is functionally a copper coil next to a permanent magnet. A hard drive head (although I guess more specifically read arm?) is also a copper coil next to a permanent magnet. So if you push an audio signal through the coil, it vibrates and makes sound. It’s missing the diaphram/cone part of the speaker, so it’ll be very tinny.
If you want to make one yourself, get a broken hard drive, and an old pair of headphones, and connect the wires to the coil and play some music.
instructables.com/Hard-Drive-Speaker-More-Instruc…