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SparkFun will be closed for the Thanksgiving holiday from 3pm on 11/23 through 11/27. Orders placed after 2pm on the 23rd will ship out Monday the 28th.

Creative Commons images are CC BY-NC-SA 3.0

Description: This Piezo Alarm is a great option for when you need an audible alarm (or are just looking for a way to prank your friends). This alarm has 16 different output options that can be changed with the DIP switches on the unit. Select Continuous, Chime, Intermittent, Warble, or Pulsating and amaze your friends.

Features:

  • Operating Voltage: 5-16Vdc
  • Operating Frequency: 3KHz
  • Warble Frequency: 2.8KHz to 3.2KHz
  • Diameter: 35.8mm, Height 35.7mm
  • 103 dB(A) at 16V at 61cm
  • 90 dB(A) at 5V at 61cm

Documents:

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Customer Comments

  • How hard do you think it would be to crack into that dip switch so that an Arduino Uno could control the tones ?

    • FBStar / last month / 1

      I am not sure but I think it would be easier to use a normal piezo buzzer and control the tones directly from the Arduino. You could use the tone(pin, frequency, duration) function to do so.

      https://www.arduino.cc/en/Reference/Tone

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