The Sparkfun Mini Speaker is a compact, 12mm round speaker that operates in the audible 2kHz range. This speaker is not a typical piezoelectric model; instead, it employs an electromagnet to drive a thin metal sheet, producing sound when exposed to an alternating current. Fine-tuned to respond best to a square wave, this speaker is a perfect match for a microcontroller.
The Sparkfun Mini Speaker is an excellent choice for projects that require the creation of simple music or user interfaces. It's compact size allows it to be easily integrated into a variety of designs without taking up too much space.
One of the unique properties of this speaker is its use of an electromagnet instead of a piezoelectric crystal. This design choice allows for a different type of sound generation, making it a unique addition to any project.
The speaker's optimal response to a square wave makes it a perfect companion for a microcontroller. This allows for a wide range of sounds to be produced, making it a versatile tool for any electronic project.
For more detailed information about the Sparkfun Mini Speaker, please refer to the datasheet provided by Sparkfun.