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help with a simple transmmiter

 
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ramses_II
HG Junior


Joined: 21 Sep 2006
Posts: 10

PostPosted: Sat Oct 07, 2006 2:27 am    Post subject: help with a simple transmmiter Reply with quote

I need help with my transmmiter project;

I don't know where to start;

I need to build a transmmiter that can send signal to another transmmiter and make a LED flash (on another transmmiter) when the signal is coming;

The transmitter would have a LED or a buzzer It would buzz or flash when signal is coming;

I don't know how to make that;

I don't even know where to start.....HELP Question
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Modio
HG Contributor


Joined: 23 Apr 2006
Posts: 29

PostPosted: Sat Oct 07, 2006 9:44 am    Post subject: Reply with quote

something like this?:
http://www.hackaday.com/2005/04/09/the-1-infrared-solution-for-your-pc/
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ramses_II
HG Junior


Joined: 21 Sep 2006
Posts: 10

PostPosted: Sat Oct 07, 2006 3:55 pm    Post subject: Reply with quote

yeah this is cool&simple

but i can't find any circuit diagram......

PLZ help
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sat Oct 07, 2006 7:18 pm    Post subject: Reply with quote

ramses_II wrote:
yeah this is cool&simple

but i can't find any circuit diagram......

PLZ help


Looks like the main site went away...

Here is another site with a schematic. Point any remote control at it to activate.

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ramses_II
HG Junior


Joined: 21 Sep 2006
Posts: 10

PostPosted: Sun Oct 08, 2006 5:31 am    Post subject: Reply with quote

and this circuit doesn't have any IR receiver?

IT should work just with transistors.....if it's true than cool.....
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Modio
HG Contributor


Joined: 23 Apr 2006
Posts: 29

PostPosted: Sun Oct 08, 2006 7:35 am    Post subject: Reply with quote

the schematic Alan posted is for an IR detector and can be found
here
if you're looking for an IR transmitter, then you need to go
here
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ramses_II
HG Junior


Joined: 21 Sep 2006
Posts: 10

PostPosted: Sun Oct 08, 2006 12:22 pm    Post subject: Reply with quote

i have a one question tho....

can i use a foto diode instead od foto transistor?
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