The Passive Buzzer Module produces tones across a 1.5kHz to 2.5kHz range with 2.54mm pin pitch and fixed bolt-hole mounting, operating from 3.3V to 5V DC, compatible with Arduino and other microcontrollers. This frequency band is deliberately practical — the 1.5-2.5kHz range sits within the most sensitive region of human hearing, meaning this passive buzzer module produces perceptibly loud, attention-grabbing tones even from relatively low drive signal amplitudes compared to buzzers operating outside this range.
this passive buzzer sensor’s PWM-driven design also responds to duty cycle changes — adjusting the duty cycle of the PWM signal from the Arduino alters perceived loudness without changing pitch, giving projects independent software control over both tone and volume. This buzzer module’s fixed bolt holes distinguish it from loose components designed only for breadboard prototyping, allowing permanent panel mounting inside a finished enclosure with screws for long-term project deployment.
this passive buzzer module price reflects a component dependent on the microcontroller actively generating the PWM signal continuously — briefly interrupting the signal in code (such as during an interrupt service routine or blocking delay) will silence the buzzer mid-tone, so timing-sensitive code structures need accounting for. Available from StemVolt, well-suited for students building tone alarm systems.
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Ira Khan –
Best online electronics components store
Alisha Varma –
Foam protected packaging
Ranveer Thadhani –
Technical support was available for circuit connections and coding assistance, while no extra charges and careful packaging ensured a smooth purchasing experience
Krishav Mehra –
Reliable sound generation and tone output, making it ideal for final year projects, alarm systems, arduino experiments, and educational electronics applications
Yuvaan Mittal –
Received this passive buzzer module in perfect condition, sound output was clear and consistent, making it ideal for my final year arduino project.
Kavya Sehgal –
Suitable for notification systems, music generation projects, and embedded applications requiring programmable audio output and easy microcontroller integration
Zorawar Bhalla –
Worth every rupee