I would like to create application for Windows Phone 7, which will be communicating with desktop application via Bluetooth/Wi-Fi. Is there any API in Silverlight, which allows to use Bluetooth/Wi-Fi programatically?
Looks like bluetooth is going to be standard in the chassis spec. Unfortunately at this stage there is no api exposing Bluetooth functionality in the SDK. I think we'll have to wait and see on this one.
I understand devices will be able to inherently connect over wifi the same as 3g. No low level wifi specific api's known at this stage.
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I'm writing a mobile application on Marmalade SDK. How can I connect to other device via bluetooth?
https://answers.madewithmarmalade.com/questions/7285/bluetooth-support.html
No, Marmalade doesn't have a Bluetooth API. However, you could write
an extension to do it.
iOS has a CoreBluetooth API that allows you to interact with devices
supporting the Bluetooth 4 Low Energy GATT profile - this is only
supported from iOS 5/iPhone 4S/iPad3 and up, and will only
interoperate with Bluetooth 4 LE capable peripherals exposing a GATT
service. For earlier iOS devices, the only option is to use Apple's
proprietary iAP protocol, which means you can't "talk" to generic
Bluetooth devices - only those that implement iAP.
Android on the other hand offers Bluetooth 2.x + EDR connectivity. A
number of profiles (e.g. RFCOMM, A2DP) are supported. However, Android
doesn't have an API for Bluetooth 4 LE yet.
So, currently, the situation, from a cross-platform point of view, is
quite fragmented and it isn't straightforward to implement a
one-size-fits all Bluetooth connectivity solution.
How can I implement CAN communication in c# windows application. I have to create an application that communicate to the device. In earlier project I used serial port. What will be the major difference between these two.. Am new to this topic.
You need a CAN controller. I would recommend the PCAN USB from PEAK Systems.
Install the drivers
Download the PCAN API from PEAK System web page. (contains C# wrappers)
Use the API in your application to send and receive CAN frames
I would like to use an arduino with a bluetooth module to modify the volume and skip songs on my phone.
All the information I found was about how to code an application that would communicate with a device via bluetooth, which isn't what I am looking for. I want to know what protocol I should follow to connect to an android device via bluetooth like a car radio would do.
My goal is to be able to use my device as a remote to control the built-in music application.
I think you are looking for the AVRCP protocol. Please send more info about your hardware so I can digg a better answer (if you need more, anyways...).
I have a requirement to have a cross-platform program --- intended for mobile devices such as Android, Brew, Bada, WinCE etc --- be able to communicate with other instances of itself via Bluetooth.
Unfortunately:
the Bluetooth APIs on such devices are all radically, radically different.
the terminology they use is also radically different.
what actually works is frequently radically different to what they say works.
So far I've discovered that Android will allow you to connect to or listen on RFCOMM services specified by a simple UUID, but does not allow more complicated manipulation of SDP records; Brew claims to support SPP but the API appears to allow arbitrary RFCOMM; Bada supports SPP but doesn't allow you to specify the UUID, so I have no idea how you're supposed to do service discovery or listen for two things at once...
Oh, and iOS doesn't allow Bluetooth communication at all to non-iOS devices.
So:
I can't be the first person to need to do this. Is there a known subset of Bluetooth functionality that I should be using in order to maximise portability?
Device makers usually implement some bluetooth profiles such as A2DP, OBEX, etc. Depending what you want to do, you should check that all your target devices implement the required profiles.
Note that even though a device can implement an specific profile, there may not be an API that will allow you to use it.
See http://en.wikipedia.org/wiki/Bluetooth_profile.
A customer (photographer) asked me, if it was possible to write some kind of software for cellphones, so he could physically connect it to his professional digital camera (Canon or Nikon) and transfer the pictures (or a subset) to the cellphone.
I am trying not to put constraints on cellphone platform (Symbian, Windows Mobile etc) from the beginning, so I am leaving that sort of constraints out on purpose.
Can anybody give me some hints?
You need a connection between the camera and the cellphone:
Some windows mobile devices got a USB-Host-Function, so you can connect either a cardreader or the camera itself via a usb-cable and read the files from the device. I never heard of a symbian-device which supports usb-host, but there might be some.
If the camera supports either bluetooth or ir, you could use these protocols to transfer the files as most mobile-phonse support this.
If you got a connection (and the protocol-support by your platform) it is easy to write a application to transfer the file from the device to you cellphone. You can write this application in any supported language (java for j2me, python (symbian), .net (windows mobile)
My digital camera saves photos to a memory card. I can simply take the memory card out of the camera and insert it into my Windows Mobile phone and view the photos on the phone.