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Posted by srinivasan (203.129.254.66) on December 19, 2003 at 05:59:19:
In Reply to: How to increase range of Infrared Detector posted by Dan on December 21, 2001 at 13:07:39:
: I want to mount an IR detector on a model train so I can trigger an on-board whistle from a hand-held remote control.
: I bought and built an IR detector kit that uses a simple T 1-3/4 LED-type detector hooked up to an LED indicator light that goes on when an IR
: transmission is received. For test purposes, I'm using a TV remote control as the emitter. It works, but only when the remote is pointed directly
: at the top of the detector and is less than 6 feet away. I know the emitter is strong enough since my TV responds from 20 feet away at almost
: any angle.
: How can I extend the range and widen the receiving angle? I'd like to be able to trigger it from up to 12 feet away, from any angle (line-of-sight).
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