All good ideas. I like the lasers and appreciate that you drew it just for me. I'd need to work on that one to account for more than one deer coming in at a time (we've had up to 20 standing in the yard in a pack so they would cover both beams quite easily. Maybe some speed or timing routines).

The magnetic field detector also sounds cool if it has some range.

I probably could just buy the one for $150.00, but that would take all the fun and stress of building it myself away! I need to finish my current project, but I think this is a good one for next. If I can do it cheap enough I could cover a couple areas of the farm that could use some coverage.

I'd be introducing myself to all sorts of PIC commands and routines to delight and confuse me!

Thanks.

Bart