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I'm trying to make java application that discovers nearby bluetooth devices and get incoming data from them. And I absolutely don't know how to do it. My application is for getting data from microcontroller board with bluetooth module. Please help me.
Use bluetooth stack like Bluecove libraries implementation which supports JSR-82 capble phone device. You can use it's deviceagent discovery api to discover bluetooth devices.
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I have long been studying the topics of how to create an WI-FI sniffer for android.
I work on the network routing algorithm, and my first goal is to listen to all network traffic. The second task - is to send broadcast messages. This is possible with on android phones? Yes, I got root access. Where can I read about what I want to do? This is done through sockets?
I do not want to adhere some protocols (eg WI-FI direct) and work with the existing ip-address system. I need the lowest level of interaction of OSI.
I think that it is impossible to establish a connection without sockets. One of the devices have to be a server, and another client
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Is there any way to connect smart phone and PC for java programming.i mean can i code same project using smart phone and PC?
Do not know If I understand your question. But this link should be helpful. It is focused on Using Hardware Devices in context of Android development.
http://developer.android.com/tools/device.html
Next time, give greater care when you create the question.
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My goal is to build an application to send text messages through android phones using computer connected to the phone using a cable.
In order to do so and to provide a good UI, I will need to read messages from my android phone to my computer. I have a slight idea that to do this I will first have to make an application using the message reading privileges and put it on my phone. Then I would need to read the messages through that application.
What I do not know is that how will I read this to my computer which has been connected using a cable to the phone. I will be using Java as the language to do this. Please advise.
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I am totally new to android as well as java for android programming.
I have to create an android app which uses wifi to chat with the devices available in the available wifi area.
I wouls like to know how can i implement this?
What are the requirements to create such app?
If it is already created, i would like to download one for the reference purpose.
Kindly help me.
Google already released an example doing just this using the wifi discovery service API that was added into Android 4. You can find it here.
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I want to make the simplest and most reliable on/off device controlled from a compuer software (Java).
I was thinking about sinus sound singnal + RC filter with relay for specific frequency, but unfortunatelly I can't use sound card - it is already occupied for different purposes.
How can I achieve this without much compatibility/reliability issues. It should work both on Unix and Windows
I mean an output device, so I want to turn on/off relay from Java software.
USB MIDI adapter and then midi to relay .
Maybe use a Raspberry Pi (includes GPIO controller). Put a web service to control the GPIO. The web service is accesable from any HTTP client.
http://learn.adafruit.com/adafruits-raspberry-pi-lesson-4-gpio-setup/