Users Manual

SCRATCH CODING KIT
Introduction
What is the sound sensor (song generator)?
The piezo buzzer is a small speaker that makes
sound using a piezo effect. The piezo effect
is also known as the piezoelectric effect and
uses characteristics of crystal or ceramic. When
pressure is applied, it causes changes and voltage
occurs on the surface. And in opposition, it
condenses or increases if voltage is given. And if
a think board is placed on it, the vibration makes
the sound we hear.
Let’s learn about the sound sensor which is one
of the robotory sensors. The buzzer that is used
by the sound sensor is the piezo buzzer. A buzzer
is a simple output device that can make a simple
sound. The buzzer used in this sensor can play
only one sound. It’s Beethoven’s ‘For Elise’. You
will be able to hear a familiar melody from the
sound sensor.