Hey everyone, first off, I am NEW to circuitry designing (but I understand all of the equations, units, etc), and so I'm at a loss right now. I'm making a sound-activated electromagnet for my end of semester inorganic chemistry project (so that I can make ferrofluid dance to music, or sounds), but I need help figuring out how to make a sound sensor that lets a current pass when it hears a noise. Perhaps I could integrate a voltage regulator in as well, to let more current pass for louder noises, and less for quieter sounds... what do you think?
Also, if you have any suggestions regarding how to make a strong, yet responsive electromagnet, I'm all ears. I have access to a pure iron rod, but I was wondering about wire-wrapping "etiquette:" number of wraps, gauge of wire, how to start a new layer of wraps, etc.
Also, if you have any suggestions regarding how to make a strong, yet responsive electromagnet, I'm all ears. I have access to a pure iron rod, but I was wondering about wire-wrapping "etiquette:" number of wraps, gauge of wire, how to start a new layer of wraps, etc.