PasPort interface, connected to laptop

Motion Detector connected to the PasPort interface

The motion dector connects directly to the free end of the PasPort interface.

Setting the angle of the ultrasonic beam

For this particular lab, we will want to set the angle "wide" (because we are trying to pick up the motion of people over a large distance). Thus, since we are PEOPLE that will be walking ... set the switch to the PEOPLE side ... see how easy that is?

In future labs, we will want to set it to a "narrow" beam, if we are just looking at the motion of a cart on a track. And then we will set it for ... wait for it ... CART