What kind of connection do you have to toggle the camera?

That'll be the hardest part.  If you can get a remote line, the
sort that screws onto the shutter button (can you tell I'm not
even a hobbiest photographer?), you could actuate it with a
solenoid or "electronic piston" of the sort that Jameco sells.

The reception part is then pretty trivial- get a Laipac RF module
for either end, attach a PIC at either end (probably wouldn't
need much of one) and there you have it.

>         The cheapest wireless remote I can find for my camera is
>designed to work 300' away, but cost $320 (that's over $1 a foot!).
>So I'd like to make my own which functions more like a normal camera
>remote (range of 10-20').  I plan to use one of the off-the-shelf IR
>transmitters, so all I need is a sensor to fire the shutter.
>         Has anyone here already done this?  I already have the RC-2
>Canon, and Pentax-M remotes, but I'm not sure as to how to go about
>decoding the IR protocol and write a program to recognize it.

To decode, get a simple IR decoder (search at Digikey or your favorite
supplier), plug it in, point the remote, check the signal on your scope.
Decode with whatever method you prefer.  I like to measure the time
between edges using the CCP module, but that's just me.  Others
have used the RB0 INT, software polling, etc. with some success.

There are literally dozens of pages about generic IR remote decoding
out there.

Mike H.

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