PAM8403 5V Two Channel Stereo Audio Amplifier Module HW-104 for DIY audio projects.
PAM8403 5V Two Channel Stereo Audio Amplifier Module HW-104 ₹30.00
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Passive Buzzer Module view showing PCB traces bolt holes and 2.54mm pin pitch
Passive Buzzer Module front view showing plastic body buzzer disc and 3-pin
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Passive Buzzer Module view showing PCB traces bolt holes and 2.54mm pin pitch
Passive Buzzer Module front view showing plastic body buzzer disc and 3-pin

Passive Buzzer Module for Arduino Projects

SKU: ELM-AA012

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Key Highlights

  • Tone range of 1.5 to 2.5kHz covers standard alert and notification frequencies
  • Operates on 3.3V to 5V DC connecting directly to Arduino or ESP GPIO
  • Pin pitch of 2.54mm fits standard breadboard and Dupont jumper cables
  • Fixed bolt holes allow secure panel or enclosure mounting without adhesive
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Description

The Passive Buzzer Module produces sound by vibrating when driven with a PWM square wave from a microcontroller GPIO pin. Unlike an active buzzer that self-oscillates, a passive buzzer sensor requires a frequency signal from your code. The module runs on 3.3V to 5V DC and covers a tone range of 1.5 to 2.5kHz, which is clearly audible in a quiet room.

The buzzer module uses a 2.54mm pin pitch header, so it plugs straight into a breadboard. A non-obvious detail is that the tone frequency you drive it at determines the pitch, so you can play simple melodies or vary the alarm tone in software using in Arduino. At 2.5kHz maximum, the output is not as loud as a piezo buzzer driven at resonant frequency.

Students and project builders use the passive buzzer arduino connection with tone() in Arduino IDE or MicroPython. StemVolt provides this sensor with trusted quality, ensuring reliable performance.

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Features:

  • Tone range of 1.5 to 2.5kHz allows pitch variation through PWM frequency control
  • Pin pitch of 2.54mm fits breadboard rows and standard Dupont female jumper cables
  • Buzzer module compatible with Arduino and microcontrollers using analog output

Technical specifications:

Specification Details
Material Plastic
Compatibility Arduino, microcontrollers
Tone Range 1.5 – 2.5 kHz
Pin Pitch 2.54 mm
Operating Voltage 3.3V – 5V DC
Mounting Fixed bolt holes

Applications:

  • Arduino alarm clock project uses Passive Buzzer Module to play a tone pattern at wake time
  • Temperature alert system drives to emit a 2kHz warning when threshold is exceeded
  • Robot collision warning system sounds the passive buzzer sensor at 1.5kHz on proximity sensor trigger

Package includes:

  • 1 x Passive Buzzer Module
1. How long does delivery take?

Most orders are delivered within 3–7 working days, depending on your location. Remote areas may take slightly longer, but we always aim for fast and reliable delivery.

2. What should I do if I receive a damaged product?

If you receive a damaged or defective product, please contact us within 24 hours and share an unboxing video. Our team will quickly verify and arrange a replacement.

3. Do you provide technical support for products?

Yes, STEMVOLT provides basic technical support for most DIY kits, sensors, and electronic components to help you use the product smoothly and without confusion.

4. Is payment on STEMVOLT secure?

Yes, all payments on STEMVOLT are processed through secure and encrypted payment gateways. Your personal and payment information remains completely safe and protected at all times.

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