Motion Activated Sprinklers

Do the local animals think that your front lawn is their personal toilet? Do ninja assassins keep trying to sneak into your house? Keep these unwanted visitors away with a motion activated sprinkler system. As soon as they step into your lawn, a passive infrared motion sensor detects the intruder and turns on the sprinkler to chase them away.

For step by step instructions check out the instructable: http://www.instructables.com/id/Keep-Unwanted-Visitors-Away-With-a-Motion-Activate/