Mutable Instruments Marbles - Secret Modes and Calibration - DIY Clone

I built another Mutable Instruments DIY clone, this time Marbles, and stumbled over some modes, when using external sampling sources, which I did not find in any manual or description.
So I wanted to share those modes here.
Besides, the module calibration is more complicated, than for other Mutable Instruments modules.
So I also describe it in more detail here.

Information about how to build the module yourself are available again on GitHub:
https://github.com/TOILmodular/MARBLES/

I also created another GitHub repository, describing the method of compiling the source code in a relatively easy way, since that is required for the calibration process.
Here the link to that repository:
https://github.com/TOILmodular/MI_FIR...

I would be happy to get some comments, in case you successfully managed to build the module yourself.
Of course, you can also comment, if you have any question.

Enjoy.

0:00 - Intro
1:38 - External Sampling - Demo Setup
2:26 - Green Mode: Shift Register
4:34 - Red Mode: Chords
6:54 - Orange Mode: Strange Hybrid
8:39 - Calibration
9:02 - Step 1: Measuring X1-X3 CV Outputs
10:50 - Step 2: Measuring Y CV Output
12:01 - Step 3: Calculating Offset and Scale
13:10 - Step 4: Adjusting the Source Code
13:35 - Step 5: Compiling the Source Code