Brian,

You are exactly right.

Dave

----
David Northup
Technical Engineer &
North American Research Sales
ActivMedia Robotics
19 Columbia Drive
Amherst, NH 03031
(800)639-9481  *108  Office
(603)881-3818  FAX
northup@activmedia.com

At 02:47 PM 5/29/2003 -0700, brian gerkey wrote:
On Thu, 29 May 2003, Richard Vaughan wrote:

>
> ActivMedia have assured me that the software bundled with the standard
> Pioneer 3 package comes at no cost to the purchaser. ARIA (the P2OS
> replacement) is GPL. Saphira is under conventional copyright, but given
> free by its author(s).
>

That's good to know.

But, to be clear, ARIA is not a P2OS replacement.  Rather (at least as I
understand it), P2OS is being replaced by AROS, which is *not* Open
Source.  P2OS and AROS are embedded OSs that run on the robot's
microcontroller and do things like low-level motor control and sonar
management.

ARIA, on the other hand, is more like a Saphira replacement, or at least
alternative.  It runs on the host computer (e.g., PC104, laptop) and talks
to the robot's microcontroller over an RS232 line.  So Saphira, Ayllu,
Player, and ARIA are mutually exclusive choices that the user has for
writing programs that control ActivMedia robots.  Player and ARIA are Open
Source; Saphira and Ayllu are not.

        brian.