Jonathan Brown

I've cobbled together a number of M4L devices that interface with a Launchpad Mini via the JSAPI. This seems to not translate directly to use with the Launchpad Pro.

Has anyone got experience with the JS LiveAPI and LP Pro?

in the LP Mini case I can observe button presses with something like:

LP = var lp = new LiveAPI( fn, [ 'control_surfaces', lp_id, 'controls', i, ]); // Where i is the LP controller index, fn is the handler.

LP.property = 'value'; // apparently setting this back to '' will unsubscribe in some sense.

or light up a button with something like :

LP = new LiveAPI( 'control_surfaces', '2', 'controls', '1' )

LP.call( 'send_value', v[ 0 ], v[ 1 ], color ); // Where v describes button locations.

So far I get an error message that the reference I get from the LiveAPI call does not support the send_value function or parameters.

I've enumerated the controls and _think_ I've got the right one--the LP Pro seems to introduce a _lot_ of new control elements.

I can control the LP Pro with direct MIDI events, but not with the JSAPI--which limits my ability to support both devices and map button presses to new MIDI values.

That's about all I have, wondering if there is a direct solution and/or if there is a general strategy for spelunking in the API effectively--I find it hard to find the parameters for functions...

 in the LP Mini case I can observe button presses with something like:
    LP = var lp = new LiveAPI( fn, [ 'control_surfaces', lp_id, 'controls', i, ]); // Where i is the LP controller index, fn is the handler.
    LP.property = 'value'; // apparently setting this back to '' will unsubscribe in some sense.
or light up a button with something like :
    LP = new LiveAPI( 'control_surfaces', '2', 'controls', '1' )
    LP.call( 'send_value', v[ 0 ], v[ 1 ], color ); // Where v describes button locations.

launchpad-pro-control-with-live-jsapi

Don't quote me on this because I don't have an LP pro anymore, but I did add support for it to one of my devices right after it was released, and did ALL of the LED stuff in MIDI because I couldn't find a good way of doing it with the API. I do know that there is no USER 2 mode, which is where I made my money on the original LP. The script just seems a lot less hackable now, and I gave up after a few hours and decided to just do the MIDI thing. I wish i had a more complete/better answer for you, but know that you're not the nly one to run into issues porting old LP devices to the new shiny model.

hey guys tried the new update with ControllerSurface release_control , grab_control ? 

Im sending data succesfully to an apc and will make more experiments . 

Docs are a bit minimal but will report here if you guys are still active and up for it or just open a new thread 

hey guys tried the new update with ControllerSurface release_control ,  grab_control ? 
Im sending data succesfully to an apc and will make more experiments . 
Docs are a bit minimal but will report here if you guys are still active and up for it  or just open a new thread 


Launchpad Pro control with Live JSAPI