digital compass modules

[luc at bos-boon.nl]

Hello,

Citeren Schmidt András <asch at freemail.hu>:
>   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.)

A handheld GPS use the change in position measured by GPS to  
determinate the direction of movement and is able to turn the display  
in that direction.

In fact, when the GPS is working like it should (IE very good with the  
planned chipset) this is the best way to calculate the heading.

Most important: it's already there in the phone.

Met vriendelijke groet,
Luc Bos