C-program example for VM201?

Modules VM201
1

Is there possible to get an exampleprogram in C for accessing VM201?
I tried a lot of thing to access VM201 without a webbrowser. But I’m not a man to understand the examples yet given neither I do not understand how to use the VM201 TCP protocol.
I think if I have an exampleprogram I can understand how I can implement it in my own program.
Best Regards//janpi
Edited 20130211
Now I found a c-program that send data to VM201. This program tcpclient.c http://www.tenouk.com/Module41a.html
I send the following data: 02 06 4F 01 A8 03
this is the result:

[quote]Client-socket() OK
Connection established…
Sending some string to the server 192.168.1.100…
Client-write() is OK
String successfully sent lol!
Waiting the 192.168.1.100 to echo back…
Client-read() is OK
Echoed data from the server: L�NRelay 1
[/quote]
But the relay doesn’t switch.
Whats wrong? Is the data wrong?

2

Did you set a password?

3

No
I just send the the message 02 06 4F 01 A8 03 which I think is to switch the relay 1 ON.

4

Sent message: 02 06 4F 01 A8 03
I now have succeeded to translate the answer from VM201.

02 05 4C AD 03 02 16 4E 01 52 65 6C 61 79 20 31
<STX><ENQ>L­<ETX><STX><SYN>N<SOH>Relay 1
  02   05 4C  AD   03    02  16  4E 01    52 65 6C 61 79           20   31
<STX><ENQ>L   -   <ETX><STX><SYN>N<SOH>   Relay                  <space>1
5

Now I have used an other c-program (client-program) and send the following:
“02 06 4F 01 A8 03”
The answer is:

L�NRelay 1

I also tried to send the following:
“02064F01A803”
The answer is:

L�NRelay 1

What do I do wrong?
Everything I try to send to VM201 will almost return L�NRelay 1
Is there anyone that can help me?