I have decided that I am going to build my own Autopilot/IMU for my UAV. I know there are plenty of units that I can buy off the shelf but that would take the fun out of it for me. I want to build my own and really understand how everything works. I am an experienced programmer and have basic electronic skills including PIC microcontrollers. My friend is an experienced RC pilot and he has offered to help with the flying aspect of the project.
I have included a basic block diagram of my initial design, any suggestions/comments would be appreciated. Unfortunately I forget to include the altitude/air speed sensor on my diagram. I would like to make sure I have a sound basic design before I get started and that I am not going about this the wrong way. Thanks!