Let's Make Robots!

What on earth is this?

My wife "organized" one of my drawers, and this thing came up. What on earth is THAT I asked. "It is just one of your thingeys" she replied.

It had no batteries in it, so I inserted some.. and nothing happened.

I has:

A speaker, a print (with a black-blob-chip on it), and.. some strange "sensor" or something? Strange little thing with wires on each side, to hold it together? And to mystify even more, that can be "sealed off".

Also, on the side it has some mounting-part, that had some old no-longer-stickey tape on it.

AND!! When I took the pictures, all the suden it started sounding like baabuubaabuu.. I shoke it, and it stopped, have not been able to reproduce!?!

Any one of you ever had such a.. thingey? Instructions for use?


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

have you tried an ir remote control to trigger it? or maybe a flashlight?


Could you try something for me, please?

Would you set your camera to auto-focus (half press teh button or whatever it takes) and point it at the thingey, then move it far away and then close to see if it chirps into life again?

I have a suspicion.

Given that I was busily typing my response at the same time a voodoobot, I would defer to my learned colleague as an IR remote is a much simpler experiment than an auto-focus. I believe he's thinking the same thing as me.

I think I agree with the two of you. 

fritz- does it sound similar to what you hear when walking into a quickie mart?

Do NOT feed it after midnight and NEVER let it get wet!


 I think i know why that it made those strange sounds.

wHenever telephone waves (from cellphones or phones) or SMS's

pass through the air and throug a speaker, the speaker go's crazy!

so maybe its that???




I've snuck into Frits' house and left random broken electronic devices. Lets see if he notices...
The truth is out there.
I know! It's a thing to make people ask questions :P


I have been following the site for a while now, while silently gathering tools and components to build my first robot, thinking I should introduce myself when I was building, but since I know what this device is, I thought Id tell (Hope I don't spoil the fun=)


It is a toy alarm! I seem to remember the kid getting it with a donald duck magazine, but his got destroyed (stepping on them hurts.:)

Apparently its basically some form of proximity sensor with an audio output.


Hope that helps! :)