Our project „autopilot“, an Arduino based do it yourself autopilot, generated obviously some interest, as I am asked for the source code repeatedly.
Our blog articles related to Arduino can be viewed here (German language only).
The documented source code can be viewed / copied here:
arduino autopilot blue-felix.de v1.0 beta.txt
Please note, that this is still a beta version which was never tested under real (rough) sailing conditions! Use at your own risk!
To be done: add rudder position sensor (potentiometer); add IR remote control;
license: This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.