Arduino "Annoy-a-tron!"

I've been admiring the Annoy-a-tron over at ThinkGeek for a while now, but I never really wanted to buy something that I knew I could challenge myself with building.  Although this is nowhere near as tiny and discreet as the real Annoy-a-tron, it functions very similarly and is still small enough to hide in a plethora of places.  My Arduino-powered Annoy-a-tron features random intervals of silence and high-frequency sound to confuse your victim more-so than a constant sound or a consistent interval.

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Step 1 The Extensive Supplies List

Here's what you'll need in terms of physical objects in order to start annoying the heck out of people:
- an Arduino (or really any microcontroller that can use the Arduino IDE's language)
- a piezo element or speaker capable of high frequencies in the 14-20kHz range

You'll also need a computer running Arduino IDE 18, a cable to interface between the computer and microcontroller (USB in many cases), and an external power source for the microcontroller (I use a 9V battery).  Inconspicuous enclosure optional.

Comments

[mykiscool]

Great tutorial simple, straightforward and it works well. The only thing I would suggest for you since the device is meant to be an annoying thing make the tone 80khz instead of 18khz it is a much more annoying high pitched squeal.

[EdDruino]

you don't need 4 pics to show how to connect a speaker to the arduino...Nice code by the way....

[geeklord]

Reminds me of the Annoy-a-Tron clone I made with an Attiny24v not too long ago. It was pretty sweet; I got the current consumption down to 15uA @ 5v, but I don't think that's even that great for something like this. There are ways to put an Arduino into power down mode; someone should try that and see what kind of results they get with an Arduino.

[Mr.Fuzz]

THIS IS AMAZING THANKS!!!!!

[Radioactive_Legos]

 No problem :)
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