{"title":"Piezo Buzzer [PS1240]","handle":"piezo-buzzer-ps1240","url":"/products/piezo-buzzer-ps1240","description":"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.\n\nFor extra volume, use differential drive by connecting both pins to microcontroller outputs and alternating which pin is high — this doubles the effective drive voltage.\n\nKey Features\n\n\nWide Voltage Range – 3–30 V peak-to-peak square wave input\n\nLoudest at 4 kHz – Effective across 2–10 kHz frequency range\n\nSimple Wiring – Connect one pin to ground, the other to a square wave output\n\nDifferential Drive Option – Double volume by driving both pins from a microcontroller\n\nCompact Size – Small form factor for embedded projects\n\n\nPackage Contents\n\n1× PS1240 Piezo Buzzer\n\n\nResources\n\nPS1240 Datasheet (PDF)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11490,"title":"Default Title","sku":"AF-160","price":2.98,"on_sale":false,"in_stock":true,"available_quantity":106,"option1":"Default Title"}]}