nRF24L01+ module not sending data

Now that you say that I recognize that this is really stupid.

Thanks very much. This could explain a lot.

Yes, I do. I will try with a different MCU when I can get my hands on one in a few days. I currently have only ATmega328 on my hands. I will report back as soon as I tried it.

Thank you so so much already. You helped me out quite much.