Arduino: Ethernet UDP Receive Data - Revision history

Onnowpurbo: /* Code */

2015-12-08T04:35:22Z

Code

Onnowpurbo: /* Code */

2015-12-08T04:31:19Z

Code

Onnowpurbo at 04:29, 8 December 2015

2015-12-08T04:29:36Z

Onnowpurbo: New page: Sumber: https://www.arduino.cc/en/Reference/EthernetUDPRead Ethernet : UDP.read() Description Reads UDP data from the specified buffer. If no arguments are given, it will return the ne...

2015-12-07T01:23:39Z

New page: Sumber: https://www.arduino.cc/en/Reference/EthernetUDPRead Ethernet : UDP.read() Description Reads UDP data from the specified buffer. If no arguments are given, it will return the ne...

New page

Sumber: https://www.arduino.cc/en/Reference/EthernetUDPRead

Ethernet : UDP.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 UDP.parsePacket().
Syntax

UDP.read();
UDP.read(packetBuffer, MaxSize);
Parameters

packetBuffer: buffer to hold incoming packets (char)
MaxSize: maximum size of the buffer (int)
Returns

char : returns the characters in the buffer

==Code==

#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;

char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,

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

void loop() {

int packetSize = Udp.parsePacket();
if(packetSize)
{
Serial.print("Received packet of size ");
Serial.println(packetSize);
Serial.print("From ");
IPAddress remote = Udp.remoteIP();
for (int i =0; i < 4; i++)
{
Serial.print(remote[i], DEC);
if (i < 3)
{
Serial.print(".");
}
}
Serial.print(", port ");
Serial.println(Udp.remotePort());

// read the packet into packetBufffer
Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);
Serial.println("Contents:");
Serial.println(packetBuffer);
}
}

==Referensi==

* https://www.arduino.cc/en/Reference/EthernetUDPRead

← Older revision		Revision as of 04:31, 8 December 2015
Line 77:		Line 77:


		+	==Code di sisi laptop / komputer==
		+
		+	Pastikan komputer / laptop tersambung di jaringan.
		+	Pastikan tidak ada kesalahan dalam routing.
		+	Jalankan
		+
		+	nc -u 192.168.0.3 8888
		+
		+	Tuliskan kata-kata yang ingin kita kirim

	==Referensi==		==Referensi==

	* https://www.arduino.cc/en/Reference/EthernetUDPRead		* https://www.arduino.cc/en/Reference/EthernetUDPRead

@@ Line 43: / Line 43: @@
   void setup() {
     // start the Ethernet and UDP:
     Ethernet.begin(mac,ip);
@@ Line 74: / Line 79: @@
+    }
+  }
 ==Code di sisi laptop / komputer==

@@ Line 3: / Line 3: @@
-Ethernet : UDP.read()
+==Ethernet : UDP.read()==
-Reads UDP data from the specified buffer. If no arguments are given, it will return the next character in the buffer.
+Baca UDP data dari buffer yang di tentukan. Jika tidak ada argumen yang diberikan, dia akan memberikan karakter selanjutnya yang ada di buffer.
-This function can only be successfully called after UDP.parsePacket().
+Fungsi ini hanya dapat di panggil secara baik sesudah UDP.parsePacket().
-UDP.read();
+==Syntax==
-packetBuffer: buffer to hold incoming packets (char)
+ UDP.read();
-MaxSize: maximum size of the buffer (int)
+ UDP.read(packetBuffer, MaxSize);
-char : returns the characters in the buffer
+==Parameter==
 ==Code==
@@ Line 31: / Line 33: @@
   byte mac[] = {
 xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
-  IPAddress ip(192, 168, 1, 177);
+  IPAddress ip(192, 168, 0, 3);
   unsigned int localPort = 8888;      // local port to listen on