Pretty simple midi mapping patch for the novation launchpad, mainly for use in a performance i have coming up. Not sure if any one is interested, but hopefully some one can put it to use somehow or save a little time. It's unclear to me if programming the leds to respond will be possible from pd, but i will look into it.

I started to make a little sequencer, never really finished it though. (image attached)

http://www.pdpatchrepo.info/hurleur/launchpadd.pd

i've also used the launchpad on two little projects.

you mean whatever it's possible to control the launchpad's leds from pd? it's easy: just use the same midi note # as the pad sends to pd. for example, sending midinote 16 /w velocity 15 will turn first pad on the second row to bright red.

this will explain it all (progammes reference at the bottom)
http://www.novationmusic.com/support/launchpad/

I've used Wac.LaunchpadHandler to control it using OSC, it's pretty effortless.

http://www.chippanfire.com/SoccoChico/Software

It's a Max program (requires the Max 5 runtime, which is free of cost) that acts as an OSC layer. In it there is a PD example client to get you started.

Thank You vickysbooties, i have spent the last two hours trying to program the launchpad to turn a trigger on when pressed and then turn it off again when pressed to use as a kind of sequencer. I have copied a little bit of the code you used to do that if that is ok.

Hi, vickysbooties, I know this thread is a little old, but I've managed to create a sample trigger (e.g. to play drums, etc...) based on your launchpad mappings. You can check it out here: http://code.google.com/p/purepad/