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'[EE]:Rolf and exceeding 20 meters of IR communicat'
Gus Salavatore Calabrese
1) Yes I have a scope for sale cheap. If you are interested reply to me
directly at oh-dog.comscope.for.cheap
2) Possible solution: Use more than one IR LED stacked in series.
Use a separate
battery set with a voltage larger than the combined drop of the
LEDs. If you use
5 LEDs that would be 5 Volts drop. ( Assumming your IR LEDs drop 1V
is hard to believe ). Use your PIC to drive a FET transistor that
turns on the string of LEDs.
All LEDs now share the same current and only one limiting resistor
need be used.
3) Using lenses is good idea. Start with a visible LED with the
same half power angle as your
IR LED. Now you can experiment with lenses that will make the beam
( this may require a darkened room ) The receiver may benefit from
a tube with flat black interior
that is pointed at the LED transmitter. This will reduce
interference from the sun and reflections.
Here are some quickie URLs I found
Augustus Gustavius Salvatore Calabrese 720.222.1309 AGSC
http://www.omegadogs.com Denver, CO
and now the small print:
Disclaimer: The above statements are not intended as an endorsement
of any kind and any inference of having any verifiable knowledge
about anything referenced above is purely coincidental. ( it is
hoped ! ) If any statement above might get the author into trouble,
it was not supported by the author but passed along from some mal-
content as an educational experience. Alignment is with authority
figures at all time; especially those with large police forces.
PLEASE DON'T HURT ME ! I AM ON THE GROUND AND SUBMISSIVE.
If you are not part of the solution, you are precipitate.
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DOMAIN. USE THEM AS YOU WILL.
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