WiFi ADHOC Connectivity

Stulish · Nov 17, 2012

Hi,

I did put a post in the updates and questions section, but i also thought it might sit here also, is the WiFi Peer to Peer manager going to be implemented into a library soon? or can the reflector be used to get this info.

I have been asked to develop and app that connects to a serial-to-WiFi adaptor, this adaptor sets up an adhoc network, i need to be able to connect to the network and then listen to an ip address and port. My app just needs to receive the data.

If i cant get this sorted the company will go off and use iPads for the task as they work fine with adhoc networks

i just cant understand why google would not have it as standard when you search for a network. :BangHead:

Please help - :sign0163:

Thanks

Stu

Erel · Nov 17, 2012

It seems like these classes are only needed to programmatically create a connection. Once the connection has made you can use the standard sockets to communicate. That means that if you can make the connection step manually then you can communicate with this device with the Network library.

Stulish · Nov 17, 2012

Is there guidance on B4A on making the connection manually. The Tablet will only ever connect to a know IP address and port.

Thanks

Stu

Erel · Nov 17, 2012

I meant that the connection should be done from the device settings menu.

Stulish · Nov 17, 2012

On my samsung G3 and my wifes HTC wildfire, they dont see ADHOC networks, thus i cant connect to it. I only found this out last night as i powered up the converter and saw the network on my laptop, and my daughter saw it on her iPhone, but i didn't see any SSID on my phone or the wifes (both android), looking on the net Android apparantly filter the ADHOC networks from being displayed, unless you have a rooted device.

So im a little stuck

Thanks

Stu

Erel · Nov 17, 2012

Seems like Android 4 still doesn't support Ad Hoc connections:
Issue 82 - android - wifi - support ad hoc networking - Android - An Open Handset Alliance Project - Google Project Hosting

The peer to peer connection is an implementation of "wifi direct" which is no ad hoc connection.

Stulish · Nov 18, 2012

Thanks Erel,

I might have to look for another way to do this or show the company how to root their android tablets so that the ADHOC networks show in the WiFi list.

The Manual for the Serial to Wifi adaptor doesn't give alot of information appart from :

The unit creates an ad-hoc network which enables another device to connect to it and share data.

To set up the WiFi connection is a two stage operation, firstly the WiFi device such as a smart phone ot PC must be on the same network, and secondly it needs to be connected to the program that you are using.

ith the unit powered on and connected to your serial equipment scan for wireless networks on the device you wish to connect to. This procedure will vary between devices so consult the user manual of the device you are using.

The device will show on WIFI networks in range. On the list you will see a network with the name "SERIAL-TO-WIFI". Connect to this network as per your devices instructions.

Once connected you need to run the application that accepts Serial over TCP/IP, configure the application to listen on:

IP Address 169.254.1.1 Port 2000

The green STATUS LED should be on constantly to confirm a connection has been made.

What i might look at doing is having the unit connect to a wireless router and then the tablet connect to the router as AP. not sure if this will work but i can try (i really dont want them using iPads )

Thanks for your help again, this community rocks

Stu

Stulish · Nov 19, 2012

I emailed the company who make the serial to WiFi device and they are going to produce a unit that sets up an Access Point instead of ad-hoc network, hopefully this will work ok with android

:sign0060: :wav: :sign0060:

lorebarita · Jan 17, 2013

Found a solution for it?

Hi I think I have your same issue with the same connector, there is an ad-hoc connection now but still android is not able to find the device when scanning.
Thanks

Stulish · Jan 17, 2013

lorebarita,

The only solution is to root the device and install third party drivers as Android does find all networks, it just filters out the AD-HOC networks (for some strange reason, not sure why google did this).

i couldn't do anything, but the company i am working for found another product that transmits the data over a normal network.

Regards

Stu

lorebarita · Jan 18, 2013

Thank you... If possible send me the link of the new product you found...

WiFi ADHOC Connectivity

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