Connects to a specified IP address and port. The return value indicates success or failure.
client.connect(ip, port)
ip: the IP address that the client will connect to (array of 4 bytes) port: the port that the client will connect to (int)
boolean : Returns true if the connection succeeds, false if not.
/*
Web client
This sketch connects to a website through a MKR NB 1500 board. Specifically,
this example downloads the URL "http://arduino.cc/" and prints it
to the Serial monitor.
Circuit:
* MKR NB 1500
* SIM card with a data plan
created 8 Mar 2012
by Tom Igoe
http://arduino.cc/en/Tutorial/NBExamplesWebClient
*/
// libraries
#include <MKRNB.h>
// PIN Number
#define PINNUMBER ""
// initialize the library instance
NBClient client;
GPRS gprs;
NB nbAccess;
// URL, path & port (for example: arduino.cc)
char server[] = "arduino.cc";
char path[] = "/";
int port = 80; // port 80 is the default for HTTP
void setup()
{
// initialize serial communications
Serial.begin(9600);
Serial.println("Starting Arduino web client.");
// connection state
boolean notConnected = true;
// After starting the modem with NB.begin()
// attach the shield to the GPRS network with the APN, login and password
while(notConnected)
{
if((nbAccess.begin(PINNUMBER)==NB_READY) &&
(gprs.attachGPRS()==GPRS_READY))
notConnected = false;
else
{
Serial.println("Not connected");
delay(1000);
}
}
Serial.println("connecting...");
// if you get a connection, report back via serial:
if (client.connect(server, port))
{
Serial.println("connected");
// Make a HTTP request:
client.print("GET ");
client.print(path);
client.println(" HTTP/1.0");
client.println();
}
else
{
// if you didn't get a connection to the server:
Serial.println("connection failed");
}
}
void loop()
{
// if there are incoming bytes available
// from the server, read them and print them:
if (client.available())
{
char c = client.read();
Serial.print(c);
}
// if the server's disconnected, stop the client:
if (!client.available() && !client.connected())
{
Serial.println();
Serial.println("disconnecting.");
client.stop();
// do nothing forevermore:
for(;;)
;
}
}