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Other uses for the TV-B-Gone kit?
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Please be positive and constructive with your questions and comments.

Other uses for the TV-B-Gone kit?

by entr0py on Thu Jan 17, 2008 2:23 pm

My office is littered with little flying IR helicopters and airplanes. While these are fun, sometimes they can get a little annoying.

I'd like to build a small "no fly zone".

I plan on modifying this kit to pulse out at regular intervals 360 degrees to disrupt these infernal flying contraptions. I think it'll be really fun to watch a group of engineers try to figure out why their toys are dropping from the sky!


I figure that I'll need to reprogram the microcontroller with codes for these types of things. Also, I plan on adding more IR LEDs to cover 360 degrees. This brings up a couple of questions.

Can I run multiple LED off one pin of the controller? I noticed from the schematic, there are two LEDs off one pin. Can do more than that as long as I have transistors in place to drive the LEDs?

How difficult would it be to add a switch to change this devices mode? Meaning switch between nuking these helicopters and say TV's?
entr0py
 
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Joined: Thu Jan 17, 2008 2:08 pm

by magician13134 on Thu Jan 17, 2008 3:34 pm

You can add more LEDs, I'm currently running 6 off one pin (with six transistors that is).
However, my personal recommendation would be using a 555 timer. That way, you could use a potentiometer to control the output frequency, easier that way:
http://www.electronic-circuits-diagrams ... ckt4.shtml
(Here's better instructions for that)
http://www.instructables.com/id/TV-Remote-Jammer!/
^You need that '!' in the web address, so make sure that gets in there
magician13134
 
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Location: Ann Arbor

by entr0py on Thu Jan 17, 2008 4:24 pm

magician13134 wrote:You can add more LEDs, I'm currently running 6 off one pin (with six transistors that is).
However, my personal recommendation would be using a 555 timer. That way, you could use a potentiometer to control the output frequency, easier that way:
http://www.electronic-circuits-diagrams ... ckt4.shtml
(Here's better instructions for that)
http://www.instructables.com/id/TV-Remote-Jammer!/
^You need that '!' in the web address, so make sure that gets in there


Oh Shiny! Thanks for the links! I'll be looking into making that jammer as well.
entr0py
 
Posts: 3
Joined: Thu Jan 17, 2008 2:08 pm

by entr0py on Fri Jan 18, 2008 1:51 am

magician13134 wrote:You can add more LEDs, I'm currently running 6 off one pin (with six transistors that is).
However, my personal recommendation would be using a 555 timer. That way, you could use a potentiometer to control the output frequency, easier that way:
http://www.electronic-circuits-diagrams ... ckt4.shtml
(Here's better instructions for that)
http://www.instructables.com/id/TV-Remote-Jammer!/
^You need that '!' in the web address, so make sure that gets in there


I've been playing and reading a good portion of the day but I can't follow that schematic. Am I just being a n00b or what?
entr0py
 
Posts: 3
Joined: Thu Jan 17, 2008 2:08 pm

Please be positive and constructive with your questions and comments.