The 'Insanity Bringer' Ringer
Intro: The 'Insanity Bringer' Ringer
The Insanity Bringer Ringer (IBR) is a diabolical little device designed to annoy and ultimately drive your victim crazy. As far as electronics go this thing is cheap and simple to make. Here's the idea:
Have you ever heard a ringing in your ears and you can't tell if its actually real or if its just in your head? The IBR's job is to simulate that. It consists mainly of a light sensitive switch and a buzzer. It rings when it is dark and shuts off when there is light. When the victim goes to bed and shuts their lights off they will activate the ringing. The victim may become annoyed and want to find the source, but when they turn on the light to start looking, the IBR shuts off. Hopefully the victim will figure its just in their head and go back to bed, starting the cycle again.
I was originally going to call it The Sleeper Beeper but it seems that name is taken for a drowsy driver prevention system. :P
Have you ever heard a ringing in your ears and you can't tell if its actually real or if its just in your head? The IBR's job is to simulate that. It consists mainly of a light sensitive switch and a buzzer. It rings when it is dark and shuts off when there is light. When the victim goes to bed and shuts their lights off they will activate the ringing. The victim may become annoyed and want to find the source, but when they turn on the light to start looking, the IBR shuts off. Hopefully the victim will figure its just in their head and go back to bed, starting the cycle again.
I was originally going to call it The Sleeper Beeper but it seems that name is taken for a drowsy driver prevention system. :P
STEP 1: Circuit Design
I'm not that great at designing electronics but this is what I came up with. Basically the ambient light sensor (TEPT5700) triggers the 2N3904 which will turn the buzzer on or off. Ideally R1 and R2 should be pots. R1 adjusts the sensitivity of the light sensor and R2 adjusts how loud the buzzer will be.
Cue bad paint schematic!
Cue bad paint schematic!
STEP 2: Parts Needed
This is what I used to make the IBR:
(1) Buzzer (easiest to just get one with an internal driver, mine is a CEP-2224)
(1) Vishay TEPT5700
(1) 2N3904 NPN transistor
(2) 1Mohm trim pots
(1) 9 volt battery
(1) Battery Clip
(1) small piece of proto board
(1) Buzzer (easiest to just get one with an internal driver, mine is a CEP-2224)
(1) Vishay TEPT5700
(1) 2N3904 NPN transistor
(2) 1Mohm trim pots
(1) 9 volt battery
(1) Battery Clip
(1) small piece of proto board
STEP 3: Build It!
I cut the protoboard down to about the outline of the 9volt battery, then I laid everything out and soldered it up.
STEP 4: Hook the Battery Up and Try It Out!
I just taped the battery to the underside of the board. Not pretty but it gets the job done.
I measured the circuit current and it was drawing about 50uA in light and about 100uA when dark. I believe an average 9v has a capacity of around 500mA so this means this device can ring continuously for about 200 days. :P
I measured the circuit current and it was drawing about 50uA in light and about 100uA when dark. I believe an average 9v has a capacity of around 500mA so this means this device can ring continuously for about 200 days. :P
STEP 5: Hide or Disguise It!
Find a good place to hide it, or if you're really crafty, try to disguise it into something. Just make sure the sensor is peeking out.
25 Comments
noah279878582 13 years ago
ilpug 14 years ago
ExtremeYoshiFan 13 years ago
[corosive] 13 years ago
yellowcatt 13 years ago
nikeman76 13 years ago
RelientOwl 14 years ago
iglesia777 14 years ago
Couple questions: Where did you get the mini pots from? And can I use a little speaker instead of a buzzer? What's the difference?
travis7s 14 years ago
Digikey - 490-2972-ND
The difference is you need to build a driver circuit to make a speaker make the noise you want. You can get a buzzer with it built in so all you have to do is apply power.
pmac93 14 years ago
Whiternoise 14 years ago
This is just inspired... deserved to win 1st imo!
janw 14 years ago
What I love most about it is that is is so easy to build and understand for electronics newbies. And it is cheap too ;)
Great Instructable surely worth 5 stars.
( I guess you might like my entry in this contest too. It is a pretty similar idea only it works with IR)
JenStar4V 14 years ago
Adum24 14 years ago
Highlordomega 14 years ago
Random_Canadian 14 years ago
Back many years ago my friends and I used to prank each other by setting a digital watch alarm then dropping it in a heating vent. The alarm would run just long enough to wake you up but not long enough to to locate it.
I totally forgot about this one until I saw your post...
Lord_Merlin 14 years ago
McMoogie 14 years ago
Naughty Kitty!
sopzman 14 years ago
Koosie 14 years ago
What a vicious kitty!