Intermitent Bleeping project on make

[willrocker]

Hi guys,
I remember reading a post on the Make website about a project to make an annoying intermitent high frequency bleep emitting device. I can no longer find it, would anyone be kind enough to provide a link?

Thanks,
Will

Posted on: February 04, 2010, 10:22:04 22:22 - Automerged
Ah, after about an hour i found it! its not intermitent, its evasive hehe
http://www.youtube.com/watch?v=NU6cSI0GQOY&feature=related

[sputnik]

There are many of these on the web. Just use Google!!!  They are referred to as an "annoyer"

Heres a few

http://www.electronics-lab.com/blog/?p=2605
http://www.r4nd0m.com/SoundAnnoyer.html

[oldvan]

It might be better if it made a different tone each time, but always toward the upper limits of human hearing.
Seems like that would be more annoying and perhaps harder to locate.

I did similar years ago, double-sided taped it under science teacher's desk.
The very first time it went off the teacher barked my name without even looking up from the paper he was grading.

[willrocker]

Thanks for the replies guys, I assumed i was going to get abuse because i answered my own question. Its nice to be in such a nice forum. The links are great sputnik, cheers. Oldvan i agree, it would be much better if the tone emited was a different frequency each time. Looking at one of the links one uses a pic, its much smaller than the one featured at make and also has more versatility i reckon it would be quite easy to add a random pitch as well. I have a pic lying about so i may have a little play around and see what results i can get if i have time.
Thats a good story oldvan - i plan on doing this to one of my teachers, we shall see what happens im generally considered a fairly well-behaved student!

One more thing, regarding thank yous, not allowed to say thank you at all in posts? or can we say thank you accompanied by a message as well?

[sputnik]

Thanks for the replies guys, I assumed i was going to get abuse because i answered my own question. Its nice to be in such a nice forum. The links are great sputnik, cheers. Oldvan i agree, it would be much better if the tone emited was a different frequency each time. Looking at one of the links one uses a pic, its much smaller than the one featured at make and also has more versatility i reckon it would be quite easy to add a random pitch as well. I have a pic lying about so i may have a little play around and see what results i can get if i have time.
Thats a good story oldvan - i plan on doing this to one of my teachers, we shall see what happens im generally considered a fairly well-behaved student!

One more thing, regarding thank yous, not allowed to say thank you at all in posts? or can we say thank you accompanied by a message as well?

I think it would be best just to use the thank you button if your post is just going to be a thank you. However, your post above seems acceptable since you commented on other things as well as said thank you.

[bbarney]

I think it would be best just to use the thank you button if your post is just going to be a thank you. However, your post above seems acceptable since you commented on other things as well as said thank you.

willrocker
sputnik has answered your question perfectly