It is just easier to find the necessary defines :-)

@jeti great work!

@jeti wait is the correct solution.

FTDI pins are not on the footprint because they are typically used for a connector on the arduino module itself. And having them included in the footprint would unnecessarily complicate routing as it would more or less box in the routs underneath the module.

@m26872: Ithink you are right, that would have helped too, or just deleting the device and getting it autoincluded again help too :smiley: thanks

@jeti said: found it, it was a not stable 3.3V for the radio... :( added a cap now everything works! topic can be closed Thanks...you pushed me in the right direction! Same issue with the same solution here!

Yes, I think that is the main reason. :-)