These four picture frames are much more than places to hold an image. Each one of these has a light behind it to light it up. In addition, that light is controlled by a motion detector that's not attached to the light. In fact, the motion detector can be anywhere there's power and a wi-fi hotspot to connect to.
So these pictures all together are really an activity map. Here, I'm using these pictures to show activity in different rooms of the house. If there's motion in a room, the corresponding frame lights up. No more motion, the frame turns off.
It all sounds a little Big Brother, but as a father of a couple of really young kids it's helpful to know just which room a kid ran off to. I don't live in a big house either. Those little guys are fast!
Step 1: Materials and supplies
The first step is to decide how many frames you want. The cost for each is roughly $100. Here's what you need for each:
9"x9" IKEA Ribba frame
Drill w 5/32" bit (I'm using this)
Belkin WeMo Home Automation Switch and Motion Sensor