Hi, I just wait until you release the PCB with IRQ on pin 18. I am using the LED's only for testing.
The LED's are configured on pins 16,15 and 13 and are working fine.
For testing I simply connect a header with resistor and led temporary.
I will try without --my-rf24-pa-level=RF24_PA_LOW , but I am having could result with low power.
It seams that this antenna is much better than the 'default' NRF24L01+

Works perfect, but a pitty that I had to solder a connection between the IRQ and pin 18. Maybe in a next version?
I use it with "--my-rf24-pa-level=RF24_PA_LOW" and works fine.

Nice, good job. Looking forward too it.

Any news on the new board? I am really interested.