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Author Topic: Interface between Arduino & a smartphone/comp using Wifi  (Read 2250 times)
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Hello!!

I am trying to make a Wireless Door Lock and Message Display Board System! The idea is to connect a smartphone/computer (through HTML?) to Arduino over Wifi network and use it to send and receive simple messages that will be displayed on a LCD connected to the Arduino board which is fixed on the door. Is this possible? Do I have to use a wifi shield or can I also use an ethernet shield with a router? Which will be easier?

Also, if the above is feasible, I will then go on to expand this into a door lock system where the phone/computer can be used to lock/unlock the door by using a simple passcode lock over the wifi network. So, a person can remotely lock and unlock his/her door from anywhere through wifi. Is this feasible too?

I don't want you to give me steps on how to do it or anything like that, its my project, I will figure that out slowly, but I just want to know if this idea is even possible and feasible enough!

Thank You so much!
Cheers
Shek
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Is this possible?

Yes.

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Do I have to use a wifi shield or can I also use an ethernet shield with a router?

Both is possible, which one to choose depends on experience, budget and space requirements.

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Which will be easier?

Typically the version with the external router is easier to debug if something goes wrong, because you can attach a laptop and try to connect from there. Debugging a non-working WiFi shield can be tricky for the beginner.

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Is this feasible too?

From a technical view: yes. You have to decide about the security view. If someone is able to decipher your network traffic he will be able to unlock your door...
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Thank you so much!

I think I will go the ethernet + router way!

Also, yes, maybe the lock may have some security issues, but as long as it can be implemented its fine. I will look further into the security protocols later!

Thank you so much! If I have any more specific questions, I shall bother you someday! smiley-razz

All the best.
Cheers!
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I'm using wireless router + OpenWRT + Arduino without using Ethernet shield for my project. This will lower the cost.
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My project: Wireless Router Home Automation to control home appliances smiley-razz
http://arduino.cc/forum/index.php/topic,127175.msg956414.html#msg956414
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