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MKRGSM : GSMUDP.read()

Description

Reads UDP data from the specified buffer. If no arguments are given, it will return the next character in the buffer.

This function can only be successfully called after GSMUDP.parsePacket().

Syntax

GSMUDP.read();
GSMUDP.read(buffer, len);

Parameters

buffer: buffer to hold incoming packets (char*)
len: maximum size of the buffer (int)

Returns

  • b: the characters in the buffer (char)
  • size: the size of the buffer
  • -1: if no buffer is available

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