Mike Brothers <electron@WLN.COM> wrote:

>I am working on a Basic Stamp project that detects IR from a
>standard tv remote control.  I tried to use a standard IR
>phototransistor but found that I had to place the remote control
>within 1/4" for it to work.
> ....
>Question:  How do I reduce the sensitivity of the IR phototransistor
>to normal light?  Should I scrap this idea, and use the GP1U52X IR
>receiver module[?]

Mike:

IR remote controls modulate their signal on a 40 KHz (or so) carrier.
Your receiver must include a highpass filter to block frequencies below
this.  The receiver modules are probably your best bet; they include
the filter, amplifiers, etc.

-Andy

--
Andrew Warren - fastfwd@ix.netcom.com
Fast Forward Engineering, Vista, California