Best posts made by wanvo

@tekka thanks for the answer. I'm still a newbie.
Now I can not make a contribution to the development due to my incompetence.
I can help as a tester

Thanks to all.
The problem is solved.
I forgot to add pin definitions to the sketch.

#define MY_RF69_IRQ_PIN D1
#define MY_RF69_IRQ_NUM MY_RF69_IRQ_PIN
#define MY_RF69_SPI_CS D8 // NSS. Use MY_RFM69_CS_PIN for the development branch.```