AHP can handle your application once the CM15A has been programed. A few smart and/or timed macros should do the trick. Most likely you'll need to a bit of debugging during your setup. A laptop with AHP loaded would be of great help in setting things up and testing. e.g. You could have everything programmed perfectly and find out you have a signal problem. It will be a whole lot easier debugging the problem with a computer connected to generate and/or receive test signals than to make dear old grandma stand in the yard waving her hands and pretending to be a deer.
I assume AHP is ActiveHome Pro... I've seen it mentioned around here but still not too sure what it is. Same with CM15A. More research to do. Still fairly new at this.
I could probably borrow a laptop. The way you describe using that program sounds like the way to go.
There are different models of Rain8 - some are actuated by RF, some are actuated by X10 powerline commands, some can be programmed to run a schedule of waterings. Similarly there are different models of X10 motion sensors - some can be configured to transmit the RF motion signal only at night.
Unfortunately I don't have the different model numbers for the above components sorted out in my head, and X-10 certainly doesn't make it easy to compare the different models of motion sensors.
One thing tp keep in mind though is that the signal transmitted by the motion sensors is not that strong, so depending on the size of the property you may or may not require more than one transceiver for power line signals. I don't know the receiving range of the RF Rain8, but if it's comparable to the V572 transceiver (made by the same company) it'll probably be very good.
One question: Do you know for a fact that deer will be deterred by a sprinkler from feasting in your granny's yard?
Yeah, I'm a little concerned about the sprinkler not scaring them. It would suck to do all this and have it not work.
If I could catch one it the act, I could find out for sure.
As far as the range, I'm thinking 30-40 ft. Maybe 50-60 if I do the back yard too. I have a couple x10 motion sensors (somewhere) so I might test it out first.
Gotta get all these little things figured out before I dive in.
So, it looks like more reseach.
Thanks.