Starter Guide

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Lesson 10 Active buzzer
Introduction
In this lesson, let’s learn about how to use the active buzzer.
What is buzzer?
A buzzer or beeper is an audio signaling device. As a type of electronic
buzzer with integrated structure, which use DC power supply, buzzers are
widely used in computers, printers, photocopiers, alarms, electronic toys,
automotive electronic equipment, telephones, timers and other electronic
products for voice devices. Buzzers can be categorized as active and passive
buzzers (See the following pictures).
S
Digital input
+
3.3V
-
GND
Operating steps
1. First, we need to prepare the following experimental materials:
1 * microbit
1 * microbit expansion board
1 * USB cable
1 * Active buzzer module
- Several Jumper wires
2. connection diagram：