Active & Passive Buzzer Module Kit — Arduino & Raspberry Pi Compatible

Add sound to your projects with this dual buzzer module kit, including both an active and a passive buzzer — giving you the flexibility to choose the right type for any application. Whether you need a simple alert tone or a custom melody, this kit has you covered.

The active buzzer is the straightforward choice — power it on and it beeps instantly with no complex code required. Just toggle a high or low signal from your microcontroller and you're done. Perfect for alarms, notifications, and status indicators.

The passive buzzer gives you full creative control. By feeding it a square wave signal between 2K–5KHz, you can program it to play musical scales, custom melodies, and variable tones — ideal for projects that need more than just a beep. It can even share a control pin with an LED in certain circuit configurations, saving you precious GPIO ports.

Both modules are driven by a 9012 transistor, operate across a wide 3.3V–5V range, and come on a compact PCB with mounting holes for easy installation in any enclosure or chassis.

Active Buzzer — Key Features


Internal oscillator — sounds immediately when powered
Simple high/low signal control
No frequency programming required
Ideal for alerts, alarms, and notifications


Passive Buzzer — Key Features


Requires 2K–5KHz square wave signal to operate
Full frequency control for custom tones and melodies
Can play musical notes — Do Re Mi Fa Sol La Si
Can share control pin with an LED


Module Specifications


Driver: 9012 Transistor
Operating Voltage: 3.3V – 5V
PCB Size: 33 x 13mm
Weight: ~6g per module
Mounting: Bolt holes included


Module Pinout (3-wire)


VCC — 3.3V or 5V power supply
GND — Ground
I/O — Microcontroller digital pin


What's in the box


1x Active Buzzer Module


OR


1x Passive Buzzer Module