Picopter

Picopter ( Quadcopter + Raspberry Pi ) <3

The Picopter is currently based on the same filtering and control algorithms as my previous 

platform, however now all of the processing is handled by the on-board Raspberry Pi. This initially seems rather counter intuitive, as time sliced operating systems like Linux are not as predictable in their execution time as a simple real-time microcontroller program, but I've found in practice preemption allows the main control loop to run at a very reliable frequency. This now means the copter can perform the same as a basic microcontroller powered platform, but also has heaps of CPU time leftover to run things such as an SSH interface to my laptop via a wireless adapter, the logging of every scrap of data imaginable to the on-board SD card (think 200 MB per flight), and the potential for complex route mapping and real-time integration into something like Google maps

 : if you want to know more information about Raspberry Pi u can visit 

    http://www.raspberrypi.org/