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WIFI Shield For Arduino

userHead rajitha 2011-07-12 18:28:18 7549 Views6 Replies
Hello,

I have just purchased WiFi Shield For Arduino.

http://www.dfrobot.com/wiki/index.php?title=WiFi_Shield_For_Arduino_(SKU:TEL
0019)

I was able to initially connect to 192.168.1.254 to view the configuration. The default IP address is no longer 192.168.1.254. I may have changed the mode from client to server. The IP address is now 169.254.214.37. I cannot connect the configuration web page either. I can ping 169.254.214.37 however. How can I reset the board so that 192.168.1.254 again becomes the default?

I tried resetting by keeping the RESET button more than 3 seconds but its still the same. How do I fixed this?

Thanks in advance.
2011-07-14 20:01:50 Hi Rajitha,

The WiFi Shield needs a minimum of 500mA to run correctly. If you do not have the specific power adapter you can try using a USB power adapter. That should supply the appropriate voltage and current.

Please try resetting the Module with nothing plugged in to it other than the power source. Once you disconnect the power wait a few seconds and plug everything in the following order:

1. Ethernet cable --This should be a cable directly from your computer to the Wifi module ethernet port.                           
2. Power adapter
3. USB cable

Once it's plugged in wait a few seconds for the "Sys" LED to light on the module.

Since your network is on a different IP gateway, you can not plug it in to your router with its default
settings. Once you are plugged in check to see if your computers IP address has been changed to something like: 192.168.1.* If so you can now go to 192.168.1.254 and make the necessary changes according to the tutorial.

-Hector
userHeadPic Hector
2011-07-14 05:38:53 I used AC/DC adapter output rated 9V 300ma.  Pressed reset for 10 seconds,  I then unplugged the power then USB and reconnected.

The IP changed to :

inet 169.254.177.110 netmask 0xffff0000 broadcast 169.254.255.255

I am using a Mac for development.  The ethernet connection defaults to DHCP.  The above IP may have been assigned by my Mac.  I made it manual and set the IP to 192.168.1.254.  As before I can ping the IP but cannot open the config page.  The configuration Web server may not be running. 


userHeadPic rajitha
2011-07-14 00:02:51 Hi Rajitha,

I have posted a Wifi shield tutorial on our blog. Here is the forum post which links to the tutorial:
https://www.dfrobot.com/forum/index.php?topic=154.0
userHeadPic Hector
2011-07-13 18:07:09 Rajitha,

Forgot to mention, try powering it from a wall wart or from a usb power adapter. Usually the PC USB port does not supply enough power to the wifi shield for it to operate properly.
userHeadPic Hector
2011-07-13 03:24:02 Hector,

That did not work.  Any other ideas? 

Its an Audrino UNO powered from the USB connection.

thanks

rajitha
userHeadPic rajitha
2011-07-12 19:47:13 Hi Rajitha,

Please try holding the reset button for 10 seconds and releasing. Then remove power and wait a few seconds. This should reset the Wifi Shield to factory default.

Hector
userHeadPic Hector