digital compass modules

[François TOURDE]

Le 13901ième jour après Epoch,
Schmidt András écrivait:

> Tilman Baumann wrote:
>> Bluetooth would be nice. You would need no hardware hacks on the
>> phone itself.
>> Should be pretty easy to hack a bluetooth->serial converter (like
>> BlueSMiRF from sparkfun) to the sensor. Maybe with a little
>> microcontroller glue in between.
>> Bluetooth is very simple to code and simple to handle.
> I was thinking about two possible applications:
>
>   1. The map of a GPS map viewer application turns when you turn the
>      machine so it is always aligned with the environment (this feature
>      is included on some GPS tools.)

Maybe the 3D accels can do that. And the GPS can be used as a bearing
indicator, when you move. No magnetic device needed in this case.