Active Buzzer module

An active buzzer module comes with a built-in oscillation circuit, meaning it produces a fixed-frequency sound on its own. It doesn’t require a signal to generate tones—just a DC power supply. You can easily control it using a digital pin on an Arduino, similar to how you would turn an LED on or off. Once powered, the buzzer automatically emits a beeping sound.

Features:

• Active buzzer design– generates a continuous tone automatically when powered (no external signal or PWM required). Simply apply a DC voltage to activate sound.
• Versatile compatibility– suitable for use with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers
• Easy mounting– includes pre-drilled bolt holes for secure installation in various applications (e.g., panels, robots, enclosures)
• Compact design– fits well in tight project spaces

Specifications:

• Operating Voltage:3V to 5V DC
• Current Consumption:Low (suitable for direct microcontroller output)
• Interface:
  
  • VCC– Power input
  • GND– Ground

Applications

Ideal for alerts – perfect for alarms, timers, and notification systems in DIY electronics