[Paparazzi-devel] Xbee: AT or API mode? Channel select? Link established

[Steffen Spies]

Hi,

I switched from Wi232 to Xbee pro (2.4GHz) modules and have a  few
questions now.

a) AT or API mode
My first step was to simply switch from Wi232 to Xbee using AT mode,
which works perfectly.
But Xbee also offers the API mode. Are there any good reasons to use
this mode?
Pros and cons?

b) Channel selection
Has anyone experience with selecting the used channel in advance?

c) Link established
I start GCS and the modem waits for the plane to establish the link. It
takes a while, some seconds, from turning on the power until the link
between plane and groundstation is established.
Is this a normal behaviour? (AT mode, PAN ID set, Device IDs set in both
modems)
Once established it works fine.

Thanx,
   Steffen