Hi every one ! is anyone of you guys know how to sniff the datas from the FFT analysis or the oscilloscope that is included in the Motu ultrilight Mk3 Hybrid, with pure data? what object can connect and translate this ? i'd like to use it as fiddle~ or sigmund~, but using the DSP of the soundcard.... Thanks.

@Bébéchat MOTU use the proprietary HUI midi protocol..... https://en.wikipedia.org/wiki/Human_User_Interface_Protocol
The Mackie control can be used in HUI mode to control their devices, and lots of DAWs have HUI capabilities.
Not sure how you hook into the midi ports but maybe they just appear in MidiOx or similar.
But it will be midi messages that you will need to send/receive in Pd.
This info on the format is miraculously still available........... https://forum.cockos.com/showthread.php?t=101328 ...!!!!!!
[f] in Pd can now convert hex to decimal..... that will be a huge help.
But unless you can find a datasheet for what you want you are going to have to sniff the data and reverse engineer the HUI.
You might have more luck adapting a DAW as a man in the middle.
David.