Hi Dale,
Check out http://www.rentron.com/Infrared_Remote_Control.htm.
I was able to send 1200 Baud serial comms at 100 ft indoors,
and 50 ft in sunlight. It's not exactly what you're
looking for but, it might give you some ideas. I just used
the circuit from Rentron, and a F628 for a 40Khz carrier wave.
The part I used was from Jameco #165008 Mfg Ref #SHARPGP1U26X   2.95 USD

Good Luck,
Kevin

>Hi all,
>
>I'm looking at an object detection problem for which I want to use a
>simple, cheap IR LED/phototransistor pair.  I plan to have each rigidly
>mounted and aimed, say a meter or so apart, and can use a flat black
>tubular shroud say half an inch to an inch in length at each end.  I could

>probably also use an IR filter on one or both ends.  In an environment
>with high ambient light levels, like outdoors, the sensor would either be
>pointed downward or parallel to the ground.  Does this sound like it's got

>a chance of working most or all fo the time, or is this doomed to fail if
>used outdoors?  I'd hate to have to resort to using a 40kHz modulated
>beam, and I'm not sure that it would make that much difference outdoors.
>Who's been here already?  This is the first time I've looked at using IR
>for a project like this.
>
>Dale
>---
>We are Dyslexia of Borg.
>Fusistance is retile.
>Your ass will be laminated.
>
>--
>http://www.piclist.com hint: To leave the PICList
>mailto:piclist-unsubscribe-request@mitvma.mit.edu
>
>
>

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu