Adds binary data to the packet to send over LoRaWAN. This data is sent as a byte or series of bytes; to send the characters representing the digits of a number use the print() function instead.
val: a value to send as a single byte
str: a string to send as a series of bytes
buf: an array to send as a series of bytes
len: the length of the buffer
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.