We are going to be building a mobile application that will need to sync with a laptop. This may be over USB, Bluetooth, etc. Is it possible to do this with Rhomobile without a sync server? We need to sync between the device and laptop in environments with no internet connectivity.
You can use the Bluetooth stack through RhoMobile to connect to another Bluetooth enabled device. However, there are some limitations of the various platforms which are outlined in the attached link.
RhoMobile Bluetooth Capabilities
Related
I recently developed an application for a client, an app iOS, Android and windows, the mobile app acts as a controller and launches certain events on the windows application. The Windows application also shares data at random (not known to the mobile app) moments. The communication was done by TCP. And works great.
The client now wants it for bluetooth. Between Android and Windows, it's not been a problem and has been done, and works well. But iOS is sadly not the same story... The use of Bluetooth low energy seems to complicate things.
I've hunted high and low on google to find anything on communication between a .net application and a Swift application, to no avail. This surprises me that no one talks of a bluetooth communication between Windows and iOS.
My question is, very simply. Is it possible? I know very little about bluetooth and I've tried researching devices and all I find is a BeeWi device that's in our office, not my computer (I maybe need to launch something on computer first? The devices are paired)
My computer has a Bluetooth 4.0 dongle and the BLE emulator is present in the Device manager.
If this isn' possible, tell me know and put me out of my misery, otherwise give me hope!
Any additional advice is warmly welcome - Thank you all !
Beau Carrel
Windows has support for being a BLE client. Just Google it and you'll find many examples, such as https://developer.microsoft.com/en-us/windows/iot/Samples/BLEGatt2.
You need to set up iOS to be an advertising peripheral.
I need to create an app read info from the ODB2 device installed in a car and show the data to the user but in a "funny" way. So I need to read the data and connect the phone to internet simultaneously.
I found this questions:How to communicate with OBD II using bluetooth or wifi using iphone , but is from 2014, maybe now there is something.
I've been looking for an ODB2 device that can communicates with iOS via Bluetooth.
I found a couple of devices that can do the trick (like viecar or bluedriver), but using their own apps. Also, I found some devices that can talk with iOS via WiFi, but it would be annoying to be connecting your device to WiFi, then turning off WiFi and using mobile data again...
So my questions is:
Is it there any way to communicates via bluetooth with an ODB2 devices? Or better said, is it there any ODB2 device that can be used via Bluetooth with iOS?
I'm currently digging my through the nest of using Bluetooth in my iOS application and I find it quite hard to find the information I'm looking for.
Can I turn on Bluetooth from within my app or does the user have to do it manually?
Can I use the basic Bluetooth fetaures (such as Discovery, connecting and Sending Data) with other devices running Bluetooth < 4.0 (classic)
AFAIK CoreBluetooth Framework can only be used to communicate with devices running Bluetooth 4.0+. Which framework is used to communicate with Bluetooth < 4.0 devices?
Is it possible to use Bluetooth in such a way that Apple will reject my App on App Store? And which ways would that be?
Is there a difference between paired and unparied communication? Can one communicate with another device without being paried? Can pairing be initated from an app?
To give some Context to my question: I'm currently developing a part of a Home Automation Application where the App needs to communicate with an embedded device which does not yet have Wifi. It has not been decided which Bluetooth version will run on the embedded device. The same functionality will be implemented in an Android application.
Thankful for some input from some with Bluetooth experience for iOS.
you cannot turn on Bluetooth from your app. The user must do it using settings or the control center.
unless you device is MFi certified you can only communicate with Bluetooth Low Energy devices
the external accessory framework is used to communicate with MFi devices that use "classic" Bluetooth
I am not aware of any use of Core Bluetooth that will lead to app rejection. If your app supports an MFi accessory that isn't associated with your company then your app will be rejected.
you can initiate bonding (commonly known as pairing but it is actually different) by requiring encryption for an attribute. Once the bonding is complete there is no difference in how you transfer data, but the data will be encrypted over the air.
I am developing an iOS app, which may need to sync a large amount of data with its OSX counterpart app, and for the use case in which the app would be used there may not be an internet connection available to connect either of the devices (iOS device & Mac).
Is there an official apple api that lets one sync data between an iOS app, and its OSX counterpart, without having to use the internet or iCloud ?
As far as I can tell, short of joining the MFI program, there isn't a way.
If you don't mind the user dragging some documents around, then you can create documents which can be accessed via iTunes: http://www.raywenderlich.com/1948/itunes-tutorial-for-ios-how-to-integrate-itunes-file-sharing-with-your-ios-app
What makes you think you need an Internet connection for WiFi?
If you are close enough for a USB cable, just create a WiFi network from the Mac (WiFi icon in the menu bar, "Create connection..."). Use bonjour to discover services, and then the apps can talk to each other.
Does iOS SDK provide a way to let iOS app talk to app running in OSX/Windows via usb cable connection?
Or, socket is the only option?
If you want to interact with an OS X program from iOS via USB, the PeerTalk lib seems to provide a convenient way to do so (without having to join the MFi program).
According to the github page, PeerTalk
Provides you with USB device attach/detach events and attached device's info
Can connect to TCP services on supported attached devices (e.g. an iPhone), bridging the communication over USB transport
Offers a higher-level API (PTChannel and PTProtocol) for convenient implementations.
[is] Tested and designed for libdispatch (aka Grand Central Dispatch).
It also
has successfully been released on both the iOS and OS X app store.
A great example is Duet Display which is a fantastic piece of software allowing you to use your iDevice as an extra display for your Mac using the Lightning or 30-pin cable. [...]
Communication via USB cable is possible but everything is under strict MFi NDA.
One link that might interest you:
Microchip: 3-step Approach to Develop iPod®, iPhone® and iPad® Accessories
Some more information on Apple MFi program
There are no fees to enter the program but you will have to fill out some 'paperwork'.