We thought that connecting an Arduino to a Raspberry Pi was overkill, but one thing caught our attention. [Jan Stevens] mentions that the RPi is less expensive than the Ethernet Shield.

Typically, you’ll use an adapter board to interface ... to create their own accessories for the Raspberry Pi. Likewise, microcontrollers like the Arduino family are fairly useful for advanced ...

A Raspberry Pi with a camera is nothing new ... on the camera while it is talking to another microcontroller like an Arduino. The camera isn’t made to take sharp photos or video, but it is ...