Get the contents of a web page from an IP adress

hello to all,

I have an Arduino module with WIFI Shield that is transmitting me the data from an analog input via WIFI using a web server (Arduino server, my computer client). I can view the contents of the web page with Chrome or Firefox by tapping eh However, when I use the "urlread" function, Matlab tells me that "Either the url cannot be parsed or the protocol is not supported".

Thereofre I have the IP of the server, I can view the data using a web browser, but I cannot see it with Maltab.

Does anyone has a solution?

Best regards, Jean

[Kevin Claytor]

Can you post an example of how you are using urlread? Does it work for other websites (or are you using it on a local network exclusively), for example, can you pull data using this command;

s = urlread('http://www.mathworks.com/help/matlab/ref/urlread.html')

[Jean]

Hello Kevin,

Thank you for your message. The Arduino and the PC are connected in a WIFI network and the IP of the Arduino shield is 192.168.0.101. In Firefox, the call of the IP address displays the information sent by the Arduino. However, the command urlread('192.168.0.101') yields the above mentioned error.

Thank you, Jean

[Joseph Cheng]

perhaps this is a network issue. I occasionally get this due to the network proxy. As Mr. Claytor asked were you able to use it on any other links? or is there a specific page that needs to be added after the 192.168.0.101. such as 192.168.0.101\index.html.

[Jean]

Hello to all,

Thank you very much for your message. Based on your advice I have tracked the issue to a syntax problem: instead of "urlread('192.168.0.100')" I should have used "urlread(<http://192.168.0.100')">. This command worked and now I am able to copy the contents of the web page into a Matlab variable.

Thank you all, Jean