fk06+@andrew.cmu.edu (Frank Vincent Koss) (07/26/90)
I'm looking for information about inexpensive sensors that can be put
on a robot. Top of the list right now is a proximity detector of some sort.
It should have a range of about 18-24 inches and only needs to detect the
presence of something (the distance to the object is not needed). I've tried
a modulated IR LED/detector circuit, but its range is only about 3 inches (in
addition, ambient light is a problem. Something I'm using as a filter cuts
the range too much.) I have the plans for a circuit which uses ultrasonic
transducers, but I can't find the transducers.
Any help would be appreciated, including but not limited to: sources of
plans, parts suppliers (both distributors and manufacturers), hints, and
encouragement. Thanks in advance for any help. E-mail information to me and
I'll summarize to the net.
Frank Koss
fk06@andrew.cmu.edu
or
koss@cs.cmu.edu