user8524: I bought a Arduino Wi-Fi Module it does not have any manual or catalog 
my project is to turn on/off a motor wireless 

 it is working grate for the serial/usb cable but i couldn't make it work for wireless/wifi
after some walking around i found that my wifi module is making a wifi network called "HL-link_A49D"
with password from 1-8 and after network scanning i found that the module ip is 192.168.16.254/ username and pass are admin/admin
here is what i found 

my question is how could i connect to the wifi module and send commands to it ?

user7699: Good detective work so far!
In the admin page you found one can see the name of the module: HLK-RM04. Googling on that I found the manufacturer/seller page. 
A PDF with some information can be found here.
Also one link with somebody's experience with the module.
For other projects you might want to try as well the ESP8266 - very cheap and seems a lot of people have experience with it, so you might find more information on the net.

8524: <p>I bought a Arduino Wi-Fi Module it does not have any manual or catalog </p>

<p>my project is to turn on/off a motor wireless 
<img src="https://i.stack.imgur.com/EvYip.jpg" alt="enter image description here">
 it is working grate for the serial/usb cable but i couldn't make it work for wireless/wifi</p>

<p>after some walking around i found that my wifi module is making a wifi network called "HL-link_A49D"
with password from 1-8 and after network scanning i found that the module ip is 192.168.16.254/ username and pass are admin/admin
here is what i found </p>

<p><img src="https://i.stack.imgur.com/hanz4.jpg" alt="enter image description here"></p>

<p>my question is how could i connect to the wifi module and send commands to it ?</p>
 7699: <p>Good detective work so far!<br>
In the admin page you found one can see the name of the module: <code>HLK-RM04</code>. Googling on that I found the <a href="http://www.hlktech.net/product_detail.php?ProId=39" rel="nofollow">manufacturer/seller page</a>. </p>

<p>A PDF with some information can be found <a href="http://www.hlktech.net/inc/lib/download/download.php?DId=21" rel="nofollow">here</a>.</p>

<p>Also one link with <a href="http://rayshobby.net/first-impression-on-hlk-rm04-serial-to-wifi-module/" rel="nofollow">somebody's experience</a> with the module.</p>

<p>For other projects you might want to try as well the ESP8266 - very cheap and seems a lot of people have experience with it, so you might find more information on the net.</p>
