Got Adafruit Feather 32u4 LoRa Radio to work and here is how

[arjanvanb (Arjan)]

I’ve not used it, but one of the posts in the topic I linked above claims:

@aschroeder

I added

extern volatile unsigned long timer0_overflow_count;

to my sketch and after the deep sleep I inserted

timer0_overflow_count += 3E6;

Thats it! timer0_overflow_count comes from wiring.c in the arduino core and is used for micros().

Adding at least 3E6 microseconds did the job. Could be adjusted depending on the real sleep time.

(Emphasis mine. Please post any discussion about that piece of code to that linked topic, not here. I will delete this reply later on.)