Lesson 4 Active Buzzer
Introduction
Buzzers are a type of integrated electronic alarm devices and powered by DC supply. They
are widely applied for sound producing in devices such as computer, printer, duplicator,
alarm, electronic toy, vehicle electronic equipment, phone, and timer and so on. Active
buzzers can make sounds constantly when connected with a 5V DC supply. This Active
Buzzer module is connected to a digital pin of the Raspberry Pi. When the pin outputs
High level, the buzzer will beep; when the pin gives Low, it stays dumb.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * Active Buzzer Module
- 1 * 3-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
Pin definition:
To Next Page
Loading...