Product Overview

The passive buzzer module is designed to generate sound when driven by an external pulse signal. Unlike an active buzzer, it does not produce sound automatically when powered. The operation is such that when a square wave signal is applied to the signal pin, the buzzer vibrates and produces tone, thereby allowing control of frequency and sound pattern from a microcontroller.

This module is suitable for alarm systems automation alerts robotics and Arduino learning projects.

Key Features

• Buzzer Type: Passive buzzer module
• Control Method: Requires external pulse signal
• Tone Control: Adjustable sound frequency from controller
• Operating Voltage: Low voltage DC operation
• Compatibility: Works with Arduino and PLC trainer boards
• Compact Design: Small PCB for easy mounting
• Low Power: Low current consumption

Technical Specifications

• Product type: Passive buzzer module
• Model: HW 512 or equivalent
• Operating voltage: 3.3 V to 5 V DC
• Control signal: Digital PWM signal required
• Sound frequency: Depends on input signal frequency
• Interface pins: VCC GND S
• Sound output: Variable tone
• Weight: 0.003 kg
• Dimensions: 2.3 cm × 1.8 cm × 1.2 cm

Suitable for

• Alarm systems
• Automation status indicators
• PLC training experiments
• Arduino sound projects
• Robotics alert systems
• Educational electronics learning

Package Includes

• One passive buzzer module

Installation Notes

Connect VCC to 3.3 V or 5 V and GND to ground. Connect the signal pin to a PWM capable digital output of the controller. Generate a pulse signal to produce sound. Adjust the frequency in the program to change tone.