Active Buzzer

Overview

The active buzzer is a typical digital output device that is as easy to use as lighting up an LED!

Two types of buzzers are included in the kit. We need to use active buzzer. Turn them around, the sealed back (not the exposed PCB) is the one we want.

../_images/Active_Buzzer.png

Wiring

Note

When connecting the buzzer, make sure to check its pins. The longer pin is the anode and the shorter one is the cathode. It’s important not to mix them up, as doing so will prevent the buzzer from producing any sound.

../_images/Active_Buzzer_Wiring.png

Schematic Diagram

../_images/Active_Buzzer_Wiring1.png

Code

Note

  • You can open the file 04_Active_Buzzer.ino under the path of Basic-Starter-Kit-for-Arduino-Uno-R4-WiFi-main\Code directly.

After the code is uploaded successfully, you will hear a beep every second.