This is the prototype for a project I am working on at the moment. The project involves sensing a table tennis ball and reacting to its position. The components from top left: Phidget Motor Controller, Firgelli L16 Micro Linear Actuator 1:30, 3x Sharp Infrared Proximity Sensors, Phidget Interface Kit 8/8/8 with a Phidget Dual Relay Board wich in turn will be connected to a 12V Micronel Centrifugal fan.
The final project will look nothing like this but having the components mounted to a piece of chipboard makes it easier to keep all the parts from becoming an even worse jumbled mess while I write the code.
Now I better start writing the Air app to control it.