创客百科

姿势共享,有节操无门槛参与的创客百科,创客动力之源 \ (^_^) /

用户工具

站点工具


en:arduino:libraries:ethernetudpbeginpacket

差别

这里会显示出您选择的修订版和当前版本之间的差别。

到此差别页面的链接

en:arduino:libraries:ethernetudpbeginpacket [2016/12/25 22:15] (当前版本)
行 1: 行 1:
 +[[en:​arduino:​libraries:​ethernet|Ethernet]] : UDP.beginPacket()
 +====== UDP.beginPacket() ======
  
 +===== 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 =====
 +<code cpp>
 +#include <​SPI.h> ​       ​
 +#include <​Ethernet.h>​
 +#include <​EthernetUdp.h>​
 +
 +// Enter a MAC address and IP address for your controller below.
 +// The IP address will be dependent on your local network:
 +byte mac[] = {  ​
 +  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
 +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(mac,​ip);​
 +  Udp.begin(localPort);​
 +
 +}
 +
 +void loop() {
 +
 +  Udp.beginPacket(Udp.remoteIP(),​ Udp.remotePort());​
 +    Udp.write("​hello"​);​
 +    Udp.endPacket();​
 +
 +}
 +</​code>​
 +
 +[[en:​arduino:​libraries|Reference Home]]
en/arduino/libraries/ethernetudpbeginpacket.txt · 最后更改: 2016/12/25 22:15 (外部编辑)