What is the best way to etablise an communication with an IP device ?

[lastiko]

What is the best way to etablise an communication with an IP device ?

some proposition ?

thanks
john

[chbeer]

What is a IP device? Did you read the documentation about "Networking & Internet" or CFNetwork?

Please try to find out yourself before asking such questions.

[xnakx]

-(void)what:(NSString*)question
{
    NSString *magicAnswer = [NSString alloc] initWithMagic[question + telepathy]];
    if([magicAnswer isEqualToString: @"iPhone"])
        {
            self.wonder = 1;
            [magicAnswer release];
            return;
         }else{
            self.headache = 1;
            [magicAnswer release];
            return; 
          }
 }

Sorry, I am bored.

[lastiko]

Originally Posted by chbeer

What is a IP device? Did you read the documentation about "Networking & Internet" or CFNetwork?

Please try to find out yourself before asking such questions.

I think about an Lighting System like Lutron for example or amx or crestron

[xnakx]

if i remember correctly Lutron uses rs232 to actually control the devices but the web manager it all HTTP. you will need to lookup on how to use NSURLConnection with authentication.

[lastiko]

Originally Posted by xnakx

if i remember correctly Lutron uses rs232 to actually control the devices but the web manager it all HTTP. you will need to lookup on how to use NSURLConnection with authentication.

yep but it's also possible with the same protocol over TCP/IP
thanks for the NSURLConnection information

regards
J.

[xnakx]

NSURL rides on TCP/IP.

are you wanting to handle packet generation and SYN/ACK responses yourself?

[lastiko]

Originally Posted by xnakx

NSURL rides on TCP/IP.

are you wanting to handle packet generation and SYN/ACK responses yourself?

yes , in fact i want to control some device with TCP/IP like VideoProj, or Camera , and more

My only problem is the way to send some data on a specific port and the stability of the wifi connection and reconnection
i begin just on iphone programming , i just receive the iphone cook book today

[lastiko]

ok now the iphone was connected when i press the button :

-(IBAction)Envoie{
	
	unsigned char aBuffer[20];
	NSString *myString = @"Test string.";
	const char *utfString = [myString UTF8String];
	NSData *myData = [NSData dataWithBytes: utfString length: strlen(utfString)];
	[myData getBytes:aBuffer];
	NSURL * HPurl = [NSURL URLWithString:@"http://192.168.0.9:81"];
	if([myData writeToURL:HPurl atomically:true]);	
}

but the data receive from 192.168.0.9 was

(0000942670) CONNECT
(0000942673) Iphone envoie : PUT / HTTP/1.0
User-Agent: Write_to_URL/1.0 CFNetwork/339.5 Darwin/9.5.0 (i386) (MacBookPro1,2)
Content-Length: 0


but i didn't send "PUT / HTTP/1.0
User-Agent: Write_to_URL/1.0 CFNetwork/339.5 Darwin/9.5.0 (i386) (MacBookPro1,2)"



and there is an other problem when i press the envoie button , he stay i blue

somebody can help me ?

thanks

[chbeer]

Did you read the documentation about writeToURL? It says:

Since at present only file:// URLs are supported, there is no difference between this method and writeToFile:atomically:, except for the type of the first argument.

So it should not support URLS other than file://... I'm not shure why it works but to make a PUT seems the intended behaviour.