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Active Buzzer Module KY-012 YL-44
Active Buzzer Module KY-012 YL-44
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Active Buzzer Module KY-012 YL-44

₹40.0 Prices include applicable taxes.
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The KY-012 Active Buzzer Module (YL-44) is a simple and reliable sound-generating component designed for Arduino and other microcontroller platforms. It generates a continuous tone when powered, making it ideal for alarms, alerts, and user notifications. Unlike a passive buzzer, the active buzzer has an internal oscillator that produces sound automatically without requiring PWM signals. It’s a must-have for hobbyists, students, and embedded system developers.

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Product Specifications

Specification Details
Module Model KY-012 / YL-44
Type Active Buzzer Module
Operating Voltage 3.3V – 5V DC
Frequency Range ~1.5 – 2.5 kHz (fixed tone)
Current Consumption ~30mA
Pins 3 (VCC, GND, Signal)

Key Features

  • Built-in oscillator, no external circuit required.
  • Simple 3-pin interface for quick integration.
  • Generates a steady audio tone for alerts and alarms.
  • Works directly with Arduino UNO and other controllers.
  • Compact design suitable for breadboard and project enclosures.

Applications

  • Alarm systems and security devices.
  • Timers and reminders.
  • Electronic toys and DIY electronics.
  • Notification sounds in automation projects.
  • Arduino tutorials and beginner learning projects.

Inside the Box

  • 1 x Arduino UNO Active Buzzer Module KY-012 YL-44

Frequently Asked Questions

No, this active buzzer generates a single fixed-frequency tone. For variable tones, a passive buzzer is recommended.

An active buzzer has an internal oscillator and produces sound when powered, while a passive buzzer requires PWM or external signals to generate sound.

An active buzzer has an internal oscillator and produces sound when powered, while a passive buzzer requires PWM or external signals to generate sound.

Yes, it works with Arduino UNO and other microcontrollers using a simple digital output pin.

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