RC CRSF Matek H743-SLIM V3

How to set up CRSF on FC Matek H743-SLIM V3

Use the 05_remote_controller.param file provided inside the diatone_taycan_mxc.zip file on How to methodically tune (almost) any multicopter using ArduCopter 4.4.x

05_remote_controller.param (20.3 KB)
I have set all the values as in this file, but nothing works

Then describe your system components and connections in detail.

Nothing really to this. Just follow the wiki:
Have the same hardware on several craft, nothing to it.