Proximity sensor for dog door ?

[richard]

fyi
I just powered up the pet sensor and put the cro on it. it reliably detects the magnet at 450mm (18") , it also seems to be more sensitive to the magnet being in motion which is probably a good thing for a pet door .
hmmm..... must be useful for something

[Sam]

Well, how about... teach your beautiful dog how to press some kind of button to enter/exit !?

don

I actually never thought of that ! Good idea but, I'm trying to train him for several basic things and he's learning great. I really want to do this PIC based though.

fyi
I just powered up the pet sensor and put the cro on it. it reliably detects the magnet at 450mm (18") , it also seems to be more sensitive to the magnet being in motion which is probably a good thing for a pet door .
hmmm..... must be useful for something

Thanks for testing it Richard ! ~18" will be fine. I'll test with the SS441's and see what kind of range I can get, I'll order some Honeywell hmc1001's if needed.

Thanks again !

[Normnet]

fyi
I just powered up the pet sensor and put the cro on it. it reliably detects the magnet at 450mm (18") , it also seems to be more sensitive to the magnet being in motion which is probably a good thing for a pet door .
hmmm..... must be useful for something

Richard

Could you provide a description of the magnet including size?

Norm