In case your soldering iron is not working:
http://www.norcoalarms.com/ezStore123/DTProductList.asp?p=2_1_1_0_0_0_40

Nelson

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dale Botkin
Sent: Saturday, August 24, 2002 11:02 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: [EE]: IR object detection


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.

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