Bit-Tree Creativity - Passive Buzzer Sound Sensor Module

Passive Buzzer Module

The BIT‑TREE passive buzzer module adopts transistor‑driven circuitry and supports 3.3V–5V wide‑voltage power supply. It generates variable musical pitches through PWM signal output, capable of playing prompt tones, alarm beeps and simple melodies. Equipped with mounting holes for hassle‑free wiring, it is widely deployed for reminder alerts, alarm triggering, interactive audio feedback and maker education projects.

Loud Audio Output via Transistor Driving

Wide Voltage Compatibility for Broad Usage Scenarios

Supports a Rich Selection of Tunable Pitches

BIT-TREE CREATIVITY

STEAM skills like programming will be a core competency for the next generation, and the time to cultivate this ability is now.

Parameter Dimension	Specification Details
Product Model	A005
Product Weight	Cased weight: 12.5g; Bare PCB weight: 5g
Product Name	Passive Buzzer (A005)
Working Voltage	3.3V ~ 5V
Driving Mode	9012 triode driving
Output Type	Digital voltage signal (square wave signal is required to drive sounding)
Interface Specification	PH2.0-3P Terminal Interface
Interface Parameter - Pin Definition	Pin G: Power negative pole (GND, external GND) Pin V: Power positive pole (VCC, external 3.3V–5V voltage) Pin S: Signal control terminal (input square wave signal to control sounding)
Physics & Installation - Product Dimension	Refer to attached drawing
Physics & Installation - Installation Feature	Reserved fixing bolt holes for convenient screw mounting
Optional Packaging Solutions	① Anti-static bag soft packaging ② White cardboard hanging hole box ③ Kraft paper box

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