Instead of reading the interrogation scheme file with another method in order to have its length. I simply used the method shape on N.

* ABMN.txt: interrogation scheme (development and testing purposes)
* path2elec.txt: configuration file: state of the multilexer channels to access each electrode
* quadmux.txt: communication channel of the multiplexer for electrodes A, B, M and N.

suppression de lignes inutiles.