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#include <OneWire.h>
#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
// Network Settings
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xEF, 0xDE };
IPAddress ip(192, 168, 1, 190);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
// Local UDP port to listen on
unsigned int localPort = 5300;
// Recipient IP
IPAddress RecipientIP(192, 168, 1, 22);
// Recipient UDP Port
unsigned int RecipientPort = 5300;
// buffers for receiving and sending data
char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
// An EthernetUDP instance to send and receive packets over UDP
EthernetUDP Udp;
OneWire ibuttonA (2); // I button connected on PIN 2.
OneWire ibuttonB (3); // I button connected on PIN 3.
[B]OneWire ibuttonC (4); // I button connected on PIN 4.[/B]
byte buffer[20]; //array to store the Ibutton ID.
char UDPbuffer[20];
byte found = 0;
void setup()
{
// For debug only
Serial.begin(9600);
// Start Ethernet
Ethernet.begin(mac,ip);
// Start UDP
Udp.begin(localPort);
}
void loop()
{
if (ibuttonA.search (buffer)){//read attached ibutton and asign value to buffer
found = 1;
} elseif(ibuttonB.search (buffer)){//read attached ibutton and asign value to buffer
ibuttonA.reset_search();
found = 2;
[B] } else if (ibuttonC.search (buffer)){//read attached ibutton and asign value to buffer
ibuttonA.reset_search();
ibuttonB.reset_search();
found = 3;[/B]
} else {
ibuttonA.reset_search();
ibuttonB.reset_search();
[B] ibuttonC.reset_search();[/B]
found = 0;
}
if (found == 0) {
delay(200);
return;
}
for (int x = 0; x<8; x++){
Serial.print(buffer[x],HEX); //print the buffer content in LSB. For MSB: for (int x = 8; x>0; x--)
Serial.print(" "); // print a space
}
Serial.println("\n"); // print new line
//crc compute//
// byte crc;
// crc = ibuttonA.crc8(buffer, 7);
// send a reply to the IP address and port that sent us the packet we received
Udp.beginPacket(RecipientIP, RecipientPort);
for (int x = 0; x<8; x++) {
sprintf(UDPbuffer, "%02X", buffer[x]);
Udp.write(UDPbuffer, 2);
if (x<7) {
Udp.write(".");
}
}
if (found == 1) {
Udp.write("ZUSATZTEXT_1");
[B]} else if (found==3) {
Udp.write(“ZUSATZTEXT_2”);[/B]
} else {
Udp.write("ZUSATZTEXT_[B]3[/B]");
}
Udp.endPacket();
}
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