Adafruit
Piezo Buzzer [PS1240]
The PS1240 is a compact piezo buzzer for generating beeps, tones, and alerts in electronic projects. Drive it with a 3–30 V peak-to-peak square wave from a t...
The PS1240 is a compact piezo buzzer for generating beeps, tones, and alerts in electronic projects. Drive it with a 3–30 V peak-to-peak square wave from a timer or microcontroller. It produces its loudest output around 4 kHz but works well across the 2–10 kHz range.
For extra volume, use differential drive by connecting both pins to microcontroller outputs and alternating which pin is high — this doubles the effective drive voltage.
Key Features
- Wide Voltage Range – 3–30 V peak-to-peak square wave input
- Loudest at 4 kHz – Effective across 2–10 kHz frequency range
- Simple Wiring – Connect one pin to ground, the other to a square wave output
- Differential Drive Option – Double volume by driving both pins from a microcontroller
- Compact Size – Small form factor for embedded projects
Package Contents
- 1× PS1240 Piezo Buzzer
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
Find this product in
Audio & Video
Brands
Related Tutorials
Free guides on learn.littlebird.com.au
