Arduino: Ethernet UDP Send isi 1 Analog Input 0

Code

/*
 UDPSendAnalogInput:

 created 27 Nov 2015
 by Onno W. Purbo 

 This code is in the public domain.
*/

#include <SPI.h>   // needed for Arduino versions later than 0018
#include <Ethernet.h>
#include <EthernetUdp.h> // UDP library from: bjoern@cs.stanford.edu 12/30/2008

// 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, 4);
unsigned int localPort = 8888; // local port to listen on


// An EthernetUDP instance to let us send and receive packets over UDP
EthernetUDP Udp;
IPAddress remoteIP(192,168,0,100);
unsigned int remotePort = 8888;

void setup() {
  // start the Ethernet and UDP:
  Ethernet.begin(mac, ip);
  Udp.begin(localPort);
  Serial.begin(9600);
}

void loop() {
  Udp.beginPacket(remoteIP, remotePort);
  int sensorReading = analogRead(0);
  Udp.print(sensorReading);
  Udp.write("\n");
  Serial.println(sensorReading);
  Udp.endPacket(); 
  delay(1000);
}

Di sisi Server

Menerima Menggunakan nc

ifconfig eth0 192.168.0.100

nc -ul 8888

Akan keluar

725
725
954
1020
0
0
...

Menerima Menggunakan python

Source udp_receiver.py

import socket
import time

UDP_IP = "192.168.0.100"
UDP_PORT = 8888

sock = socket.socket(socket.AF_INET, # Internet
                     socket.SOCK_DGRAM) # UDP
sock.bind((UDP_IP, UDP_PORT))

while True:
    data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
    print time.strftime('%X %x %Z'), "\n", data

Jalankan

python udp_receiver.py

Hasil

09:34:04 01/03/16 WIB 
725

09:34:05 01/03/16 WIB 
725

...