I don't have a GrandMa2 at my disposal right now, but the manual says you can send and receive midi control messages. pd's [ctlin] and [ctlout] should work for this. If you have problems parsing NRPN messages, get back to me.
> Date: Sun, 11 Nov 2012 17:30:00 +0100
> From: jack@rybn.org
> To: pd-list@iem.at
> Subject: Re: [PD] [OT] GrandMa2 and Pd
>
> Hello,
>
> I am working on a performance where we use Pd 0.43.2 and a GrandMa2
> light controler.
> Is there someone who has ever work with this configuration ?
> It seems we can only get midi info with [midiin], is it normal ?
> It is possible to send and receive control change on this controler with
> Pd ?
> Thanx for help.
> ++
>
> Jack
>
>
>
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