Wifi Shield SSID Problem + Stack-able question

2012-08-30 08:33:09 Hi Ali,

I replied to your e-mail I believe. I have not seen you registered in the Blog.

I am confused about your battery is it 1.5A or 5A(you stated to different values). If it is 1.5A there should be no problem with it. The Arduino can take upto 20V but that is not recommended. The ideal voltage is 7V, but 12V is still a safe range. So your 10V @ 1.5a is still in a good range. The most important thing for your battery life in this case is mAh (miliAmp Hours) of the battery, this value is what determines how long your battery will be able to operate.
We sell a good [url=http://www.dfrobot.com/index.php?route=product/product&path=70_117&product_id=489#.UD60etbib3E]battery[/url] for general robotics applications. Hector

2012-08-30 01:55:54 Hector,

I have sent you an e-mail regarding my project but its still under production. Today i was messing around with my project and it happens that the 9V battery depletes easily and the problem occurs that Wifi Shield does not operate when the battery voltage is low. I have a battery with me with specification of 10V and 1.5Amps.

-My question is if plugging in 10V and 5Amps battery to Arduino Uno will it damage the Wifi Shield? (Arduino can take up to MAXIMUM 20 Volts (As mentions on their website))
-If it wont damage the Wifi Shield what it the maximum Voltage and Amps i can supply to it?

Included are 2 pictures of the AGV i am making.

Thank You.
Ali. Ali.Irshad

2012-08-22 09:33:24 Ali,

I'm glad you got it working! If you like please share your project with us, include details like sample code, hardware used, a video/pictures of the result, etc.. We might feature it on our main page!

if you don't have a blog you can post it to our community. Just register and email me with your user name and I can give you author privileges.

techsupport AT dfrobot DOT com

8) Hector

2012-08-22 03:43:53 Hey Hector,

Today i tried connecting to my University Wifi, it displayed only one SSID and it connected... Well m not resetting my Wifi Shield now :P
My project was to make a Wifi controlled Car (too common i guess) and it worked perfectly ;D

Thank You for all your help ;D

Ali. Ali.Irshad

2012-08-21 09:54:31 Hi Ali,

Looking through the wifi's data sheet, I found this:
AT+WS=

This AT command will actually display the BSSID for all networks it finds. Its on pg 27 of the datasheet so you can see all the details. [url=http://www.dfrobot.com/image/data/TEL0047/WizFi210%20datasheet%20V101.pdf]Datasheet[/url] Hector

2012-08-20 14:50:08 Thank You Hector,
I will start working on it tomorrow and will post how it worked for me :).

Thank You,
Ali. Ali.Irshad

2012-08-20 09:50:10 Ali,

The SSID you are "seeing" is actually the ESSID, which is a name given to the BSSID. What you need to look for is the BSSID which is a numeric SSID, and unique to each access point. You might want to download the linux distor "backtrack" I recommend release 3 it is easier to use than some of the newer releases.

Here is an old post on[url=http://lifehacker.com/5305094/how-to-crack-a-wi+fi-networks-wep-password-with-backtrack] life hacker[/url]. It runs through how to "crack" a WEP network. I don't recommend doing this, but in the process you can see from the second screen shot, that it will show you how to discover the BSSID.

Good luck!

P.S. Their most probably is an easier way to find the BSSID, I just thought of this one off of the top of my head. If you do find an easier way, be sure to post back your findings :)

Hector

2012-08-18 05:59:55 Thank You Hector. Any idea on the SSID issue i am having?

Ali. Ali.Irshad

2012-08-17 16:51:03 Hi,

Not all of our shields are listed. But you can check this resource for a general guide of what is compatible and what pins are being used by what...
[url=http://shieldlist.org/dfrobot]http://shieldlist.org/dfrobot[/url]

Hector

2012-08-16 03:06:48 Hello,
Wifi Shield SSID Problem:
I am trying to connect my Wifi Shield to my University Wifi but one issue standing in my way is the SSID. My University SSID is "HeriotWattUni" and the issue stand when the Wifi Shield searches for SSID it looks up 3 SSID of same name "HeriotWattUni, HeriotWattUni and HeriotWattUni" well i know one of them is meant for us student and other should be either the Wifi Signal booster or Hidden SSIDs for Staff members. I enter the SSID in WizSmartScript with the wifi password it gives me an error and i also tried with PuTTY, same error in compiling when SSID is entered. What might be the issue?

Stack-able question:
Can i stack Arduino Uno, 2A Motor Shield For Arduino and Wifi shield?

Thank You Ali. Ali.Irshad