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“When electricity flows through a coil of wire, it turns into a magnet, an electromagnet. That coil will now be attracted to the real magnets inside the cone. Your music device will send out unique intensities of electric current causing …
“A speaker works by activating an electromagnet which is nearby a “regular” magnet. This produces vibration, resulting in sound. So if instead of supplying current to the speaker, we can produce current (if very little) by moving the speaker itsself …
“Pringles occasionally run a promotion where you get a speaker for the can. But why bother with all that, when you can make your own speaker from the Pringles can.”
“For a time I tried to build a Talking Clock (see the video), but with not good results due the voice module I was using for that. After many searches related to appropriated hardware and also learn how to use …
“Before you start making the Speaker, make sure you have the following things”