Hi, 

you should have a look to the Launchpad S Programmer Reference Manuel [1] which explain everything you should be know to light up a LED on the controler.
The seection Computer-to-Launchpad LED Messages on page 12 describe how to do that.
You just need a [noteout] on channel 1 with the pitch corresponding to the pad number and the velocity codes the colour.
velocity = 12 + RED + 16*GREEN
With red and green between 0 and 3 I guess.

I made a little patch to use it's sister controler Novation Launch Control XL, attached to this email.
Yours is not the same, but it could be a stating point.
One thing in my patch you don't need I think, is that Launch Control XL has 16 layers on on each MIDI channel.
Then to light UP the LED on layer 5 I have to send note on chanel 5.

Cheers

Antoine
 [1] http://d19ulaff0trnck.cloudfront.net/sites/default/files/novation/downloads/4700/launchpad-s-prm.pdf

--
do it yourself                      
http://antoine.villeret.free.fr

2015-06-04 10:50 GMT+02:00 <fz@mur.at>:
Hi,
I try to embed the Novation LAUNCHPAD S in Pd for a performance.
So it would be great to access LED colors, buttons, etc. easily. I found this new library lp_util from Dan Prince: http://www.danpprince.com/engineering/lp_util/
This really looks interesting.

The only problem for me is, that I can´t get it working. I am on Win8 and I use Pd-extended 43.4 - I put the lp_util folder in my C:\Program Files (x86)\Common Files\Pd and Pd seems to find it. - In Pd I declared the launchpad as Midi In and Midi Out device.

If I run the patch lp_util_module_test nothing happens. So could anybody give me a hint, how to get it working?

thanks!

fränk

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