Hi,
I'm a new programmer in Arduino's world and often use it in conjunction with Crestron.
I tried to read the Reference and the other topics, but maybe I haven't the necessary experience to understand them.
#include <SPI.h>
#include <Ethernet.h>
#include <EthernetUdp.h>
// Definisco i parametri Ethernet
// MAC Address (media access control) della scheda Arduino Ethernet
byte mac[] = {0x90, 0xA2, 0xDA, 0x0D, 0x90, 0xD5};
byte ip[] = { 192, 168, 0, 62 };
// Definizione del Gateway, DNS e SubnetMask
byte gateway[] = {192, 168, 0, 101};
byte dnServer[] = {151, 99, 125, 2};
byte subnet[] = {255, 255, 255, 0};
// Definisco i parametri per la comunicazione UDP
char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
int remoteIP = (192, 168, 0, 210);
int remotePort = (8888);
unsigned int localPort = 8888; // Definisco la porta di comunicazione
int ConnectionStatus = 0;
EthernetUDP Udp; // Istanza EthernetUDP per consentirci di ricevere e inviare pacchetti in UDP
void setup() {
// Definisco l'ingresso digitale "2" come INPUT, in quanto c'è collegato il pulsante
// che invierà la stringa
pinMode(2, INPUT);
// Inizializzo la comunicazione sulla porta seriale
Serial.begin (9600);
// Inizializzo la scheda Ethernet
Ethernet.begin(mac, ip, gateway, dnServer, subnet);
// print your local IP address:
Serial.print("My IP address: ");
Serial.print(Ethernet.localIP());
Serial.println();
// Inizializzo la porta di comunicazione
Udp.begin(localPort);
}
void loop () {
int packetSize = Udp.parsePacket();
if(packetSize)
{
Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE); // read the packet into packetBufffer
Serial.println(packetBuffer);
Up to here, is all fine. I read on monitor the correct string I sent by Crestron to Arduino.
Now, I need to compare the string that I received by Crestron, with a fixed string in the code.
delay(1000);
Serial.println("Connecting...");
if(packetBuffer == "Crestron connect") {
ConnectionStatus = 1;
delay(500);
Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());
Udp.write("Arduino connect successfully");
Udp.endPacket();
Serial.println("Connected");
}
else {
ConnectionStatus = 0;
Serial.println("Connection failed");
delay(1000);
}
}
}
I have no errors, but the code always makes the condition with "ConnectionStatus = 0".
Where am I wrong?
