Question

All of the examples in the TCPIP Demo App are built using a custom program that designs a webpage that triggers callbacks when the webpage is changed. Is it possible to get a value from a sensor every X seconds and send the data out over an HTTP POST?

Answer 1

I do this right now. Reading the value from the sensor every x seconds should be pretty self-explanatory, but encoding the message with a “POST” is a little trickier.

I did something like the following generic packet:

        TCPPutROMString(MySocket, (ROM BYTE*)"POST ");
        TCPPutROMString(MySocket, RemoteURL);
        TCPPutROMString(MySocket, (ROM BYTE*)" HTTP/1.1\r\nHost: ");
        TCPPutROMString(MySocket, ServerName);
        TCPPutROMString(MySocket, (ROM BYTE*)"\r\nContent-Length:         
                        [put number of all following characters here]\r\n\r\n");
        TCPPutROMString(MySocket, (ROM BYTE*)"variable1=whatever");
        TCPPutROMString(MySocket, (ROM BYTE*)"&variable2=whatever");
        TCPPutROMString(MySocket, (ROM BYTE*)"&variable3=whatever");