The Buzzer/Speaker

TODO:ASK IF THIS MAY BE DISRUPTIVE

The micro:bit piezoelectric buzzer or sometimes called a speaker is a built-in output component that generates sound using a piezoelectric element. When an electric current is applied to the piezoelectric element, it vibrates at a high frequency, producing audible sound waves.

Using the piezoelectric buzzer, the micro:bit can produce various sounds, tones, and melodies based on instructions provided in programmed applications. This allows for auditory feedback, alerts, or entertainment in interactive projects.

Note

The component is often called a speaker, but it is a piezoelectric buzzer. Here are some of the key differences:
Piezoelectric Buzzer: A piezoelectric buzzer generates sound through the piezoelectric effect, where an electric current causes a piezoelectric crystal to vibrate, producing sound waves directly. They often are used to produce simple sounds and beeps, because they have a limited frequency range. Piezoelectric buzzers can operate a minimal amount of power.
Speaker: A speaker generates sound by converting electrical signals into mechanical vibrations using a diaphragm (usually made of paper, plastic, or metal) that moves air to produce sound waves. Speakers can produce more dynamic sounds, becaye they have a wider frequency range. Speakers require more power to produce sounds.