Picture of Guard Dog Burglar Alarm!
Turn your doorbell into a vicious guard dog alarm! Watch the video then buiild your own and protect your home and family.

1-40 of 44Next »
SteveA48 months ago

Does this make sense?

SteveA48 months ago

This is a great project. Two issues that I picked up, maybe you can help to correct this. The first issue is that the two leads from the rectifier first showed being connected to the doorbell, and then shown somewhere else as being connected to the recording device. So, which one is right? I vote the doorbell leads go to the 12V relay and not to the playback device.

Also, where does the 2.4 GHz Audio/Video transmitter connects? I would have thought at the playback connector , but does that mean these leads at T'd into the two rectifier leads?

With these two clarifications, this is a simple yet effective device.



goldenshuttle10 months ago

great idea; indeed no need even a microcontroller. However it works only if bell is pressed. one can try adding a PIR sensor which triggers the recorder if anyone comes close to door..of course home owners won't be worried about it and they can turn it off after they enter the place. great work Mr.Kipkay..please keep posting

cjs12982 years ago
My friend doesn't even own a gun, but he just puts an NRA sticker on his door.
jrigvd2 years ago
Key Kip, The schematic is ok in the instructable but wrong in your video on youtube! Cheers!
techboy4113 years ago
could this wake a PC?
sk8r4life6 years ago
few things 1. where did you get the audio receiver and transmitter and how much? 2. would a burglar really ring a door bell?
yes and no--its a check to see IF someone might be home--we dont like surprises,niether do burglurs
Kipkay (author)  sk8r4life6 years ago
Links on the Instructable for all of the parts. This is a common practice to impersonate a survey taker, sales person, etc...ring the doorbel. If no one answers maybe check the house out.
I'm sure you would know, after all, you did open that window in no time flat ;P
ElvenChild4 years ago
but a smart burglar would hear the audio repeating in a loop and think that is one weird dog!
ARJOON5 years ago
however you need to let your pc on. it will eat up too much electricity.hell yeah i know kipkay. he is just an animator, not smart at all 
Kasm279 ARJOON5 years ago
The only thing you would use the PC for is to record to the recording module. Other than that it has nothing to do with the operation.
cupnoodles25 years ago
hello! , would that circuit work like to power a relay so that i can turn a motor while the doorbell button is pressed? im trying to make a sistem to open my door as i press the doorbell button for my room thanks.
DJ Radio5 years ago
Hey kipkay, You might want to reject all of your patches, they make your orangeboard not work.
lol, and that's a bad thing? Does he really want MORE comments?
Berkin6 years ago
Ingenious! Keep up the great work!
Mr. Squishy6 years ago
That will scare a burglar away for sure.
Squid Tamer6 years ago
Neighbors who visit often will start to wonder why they've never actually seen the dog! (Could end in people looking around and under furniture when they think you're not looking, or in a call from PETA about confining animals! ;) )
mhkabir6 years ago
Step 6??
i guess that's a mistake of Kip, he is human too
Or is it a bug in instructables??
Nabil6 years ago
Hi, i have a question: If u press the doorbell a couple of times quickly, will the dog barking sound react weird?.
jimmytvf Nabil6 years ago
i don't usually ring doors this way... (if are my close family as my aunt, i ring this way, because they now that's me)
Clever!! You should get a lower pitch bark to make it scarier!
Reminds me of Ferris Bueller's Day Off.
Haha that is exactly what I was thinking, great movie
Robb6 years ago
This was in an episode of Weeds. Cool instructible.
JasperCat6 years ago
My neighbour has a store bought version of this its not very convincing. Makes me smile when it begins to run out of battery and sounds odd though :)
hunnynspice6 years ago
Goodhart6 years ago
Recording suggestion: incorporate the sound of the doorbell first, and THEN the dog barking. It may sound more realistic to have it sound as if the doorbell is still working (sounding as though the sound of the bell made the dog bark).
Kipkay (author)  Goodhart6 years ago
The doorbell will still ring as normal.
Goodhart Kipkay6 years ago
Ah, ok, on a quick read, I missed that, sorry
D.L.H.6 years ago
Very cool!
that would sure scare the poop out of me!
junits156 years ago
Oblivitus6 years ago
Great idea.
1-40 of 44Next »