Active Buzzer Module 3.3V-5V for Arduino ESP32 Raspberry Pi

The Active Buzzer Module is a compact electronic sound module that produces a beep when power is applied. Unlike passive buzzers, an active buzzer has a built-in oscillator, allowing it to generate sound using only a HIGH digital signal from a microcontroller.

It is widely used in Arduino projects, ESP32 IoT devices, Raspberry Pi automation, security systems, alarms, timers, smart home devices, robotics, industrial electronics, and educational electronics experiments.

This module supports 3.3V and 5V logic, making it compatible with Arduino UNO, Nano, Mega, ESP8266, ESP32, Raspberry Pi Pico, STM32, NodeMCU, and many other development boards.

The Active Buzzer Module is one of the most commonly used output devices in embedded systems. Since it contains an internal oscillator, it does not require PWM or frequency generation from the microcontroller. Simply providing power or setting the signal pin HIGH produces a clear audible beep.

Its compact PCB includes mounting holes, onboard resistor, and standard 3-pin interface for quick connection.

Whether you are designing a security alarm, obstacle detector, smart doorbell, battery warning system, motion detector, or IoT notification device, this module offers a simple and reliable sound output solution.

Students and beginners appreciate its easy operation, while engineers use it for industrial prototypes and embedded applications.

Features:

• Built-in oscillator
• Simple HIGH/LOW digital control
• Compatible with both 3.3V and 5V systems
• Loud and clear beep output
• Low power consumption
• Easy 3-pin connection
• Ideal for Arduino and ESP32 projects
• Fast response time
• Compact PCB design
• Suitable for DIY electronics and robotics

Specifications: