Discussions

Hi everybody, as this is my first post. I would like to say thanks to all the people who are working so hard on this project.

While testing the current firmware in an X  frame setup I have noticed an offset of the compass by exactly 45°. I also think that this is the reason why the loitering mode does not work properly and results in circular movements. I think this might be the same issue others might have with the loiter mode.

Is there a parameter I need to change or is this a bug? APM is mounted as described here http://code.google.com/p/arducopter/wiki/AC2_Frame_Assembly

and the MAG is mounted to the shield as described here:

http://code.google.com/p/arducopter/wiki/AC2_Magnetos

Any help on this is highly appreciated.

Another issue that came up is, while using the new APM Board (v1.4) the 5V power supply is connected via a diode (D1) this used to be only the case (v1.2) when using external power. This however results in a voltage of about (4.7v) at the ATMega. While everything still works fine, the analog ref. voltage will be a bit low resulting in wrong AD-conversion. I know there is the “#define INPUT_VOLTAGE 5.0” in the config file.  However, this might be a good parameter to include in the CLI setup menu. Because everything else is working great and can be configured in the CLI.

Keep up the good work,
Niklas