

Highly recommend getting a Wifi interface with an external antenna.

Bluetooth : one USB Bluetooth interface.Ethernet : two network interfaces, one USB device and the built in Ethernet interface on the Pi.Wifi : two USB Wifi interfaces, one with a built in antenna (white Wi-Pi), one with an external antenna connector (black) linked to a bracket using SMA connectors.Single board computer (SBC) : Raspberry Pi 2, but any Pi could of been used.

The system is built from off-the-shelf components, shown in figure 2: Then using the aircrack tools LINK try and break the Wifi password used on a typical home router. This hardware was put together as an open day demonstration, illustrating how a simple Pi based system could be used to scan for Bluetooth and Wifi devices.
