EthernetUDP.beginPacket()

Posted by On 01 / 27 / 2014 2 Comments

Description

Starts a connection to write UDP data to the remote connection

Syntax


Udp.beginPacket(remoteIP, remotePort);

Parameters

remoteIP: the IP address of the remote connection (4 bytes)
remotePort: the port of the remote connection (int)

Returns

None

Example

#include <Ethernet.h>
#include <EthernetUdp.h>

// Enter an IP address for your controller below.
// The IP address will be dependent on your local network:
IPAddress ip(192, 168, 1, 177);

unsigned int localPort = 8888;      // local port to listen on

// An EthernetUDP instance to let us send and receive packets over UDP
EthernetUDP Udp;

void setup() {
  // start the Ethernet and UDP:
  Ethernet.begin(NULL,ip);
  Udp.begin(localPort);
}

void loop() {
  Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());
  Udp.write("hello");
  Udp.endPacket();
}

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The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.