Checks for the presence of a LoRaWAN packet, and reports the size. parsePacket() must be called before reading the buffer with modem.read().
int: the size of a received LoRaWAN packet
Corrections, suggestions, and new documentation should be posted to the Forum.
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.