Arduino: Ethernet UDP Receive Data Switch LED - Revision history

Onnowpurbo: /* Client */

2016-01-04T09:04:52Z

Client

← Older revision		Revision as of 09:04, 4 January 2016
Line 77:		Line 77:

	nc -u 192.168.0.3 8888		nc -u 192.168.0.3 8888

			* Ketik H untuk menyalakan LED
			* Ketik L untuk mematikan LED

Onnowpurbo at 09:02, 4 January 2016

2016-01-04T09:02:42Z

← Older revision		Revision as of 09:02, 4 January 2016
Line 60:		Line 60:

	// if it's a capital H (ASCII 72), turn on the LED:		// if it's a capital H (ASCII 72), turn on the LED:
	if (packetBuffer == "H")		if (packetBuffer[0] == 'H')
	{		{
	digitalWrite(ledPin, HIGH);		digitalWrite(ledPin, HIGH);
			Serial.println("LED ON\n");
	}		}
	// if it's an L (ASCII 76) turn off the LED:		// if it's an L (ASCII 76) turn off the LED:
	if (packetBuffer == "L") {		if (packetBuffer[0] == 'L') {
	digitalWrite(ledPin, LOW);		digitalWrite(ledPin, LOW);
			Serial.println("LED OFF\n");
	}		}
	}		}

Onnowpurbo at 08:46, 4 January 2016

2016-01-04T08:46:54Z

← Older revision		Revision as of 08:46, 4 January 2016
Line 59:		Line 59:
	Serial.println(packetBuffer);		Serial.println(packetBuffer);

	// if it's a capital H (ASCII 72), turn on the LED:		// if it's a capital H (ASCII 72), turn on the LED:
	if (packetBuffer == "H")		if (packetBuffer == "H")
	{		{
Line 74:		Line 74:
	==Client==		==Client==

	nc -ul 192.168.0.3:8888		nc -u 192.168.0.3 8888

Onnowpurbo: New page: ==Code== #include #include #include const int ledPin = 4; // the pin that the LED is attached to // Enter a MAC address and IP addres...

2016-01-04T08:38:17Z

New page: ==Code== #include <SPI.h> #include <Ethernet.h> #include <EthernetUdp.h> const int ledPin = 4; // the pin that the LED is attached to // Enter a MAC address and IP addres...

New page

==Code==

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

const int ledPin = 4; // the pin that the LED is attached to

// 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, 0, 3);

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() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
while (!Serial)
{
; // wait for serial port to connect. Needed for native USB port only
}
// 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);

// if it's a capital H (ASCII 72), turn on the LED:
if (packetBuffer == "H")
{
digitalWrite(ledPin, HIGH);
}
// if it's an L (ASCII 76) turn off the LED:
if (packetBuffer == "L") {
digitalWrite(ledPin, LOW);
}
}
}

==Client==

nc -ul 192.168.0.3:8888