I have developed mobile application with Devexpress DXTreme, i need to print that data using bluetooth by a bluetooth printer.
help me, how to print!!!
It is not currently possible to access bluetooth devices with DXTREME out of the box. Instead you can use PhoneGap. Here are some related links from the DevExpress Support Center which is the best place to ask.
How to use bluetooth device (printer) with DXTREME?
How to access device hardware
A StackOverflow answer with some links to PhoneGap bluetooth plugins
Related
I've got an existing PCL Xamarin forms app which works great. New requirement is to connect a Biocontrol Hhr3000 scanner via Bluetooth to the .ios version of my project. Workflow is, i first connect and pair the scanner to my iPhone over Bluetooth. I need a non LE (low energy) Bluetooth library which i can use to work with this. All i can find on the internet is all examples of LE Bluetooth so as it stands i cant get the iPhone to pick up the scanner via normal Bluetooth pairing.
Please point me in the right direction. I'm looking for an ios implementation thats simple like this one for android: https://acaliaro.wordpress.com/2017/02/07/connect-a-barcode-reader-to-a-xamarin-forms-app-via-bluetooth/
If the device is Mfi Certified by Apple, then you can use the External Accessory Framework to interact with the bluetooth device. If you can pair it, I have to assume it is Mfi Certified.
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.
we are about to start developing an app for iOS that reads data sent via Bluetooth from a device. Which framework should we use if the Bluetooth device that sends the data is not BLE 4.0? In addition to this, if it is possible to develop to app by using a different framework, will the same app also be able to connect to BLE 4.0?
Any pointer is highly appreciated.
Thanks in advance for any pointer.
The framework you are looking for is the ExternalAccessory.framework (although there are limitations). You can use it and the Corebluetooth.framework inside the same app, but they will not be related on which devices they can connect to. Corebluetooth is Bluetooth low energy only. Check this answer and the related links for more information on using the ExternalAccessory.framework :
How to use bluetooth classic instead of le
Aim
I want to pass data from iOS device to a PC using Bluetooth. The data should look as a keyboard input to the desktop. I have been doing some background research about the same and thought of using any HID keyboard emulator dongle. One can pass the data over using the Bluetooth and the dongle will show it as keyboard input to the PC.
Outcome of some related research:
Initially I tried to pair an ios device with a windows PC directly. I was unsuccessful. After some research and reading many questions, it turns out that an ios device can only be paired with a MFI( Made for ipad/ipod/iphone) compliant device/accessory, i.e those which have signed NDA with Apple and have joined the MFI program. It can also ofcourse be paired with a Mac.
Question:
With the release of Bluetooth 4.0, it seems that this restriction
can be overcome and it can be paired with any device compliant with
BLE 4.0. Is it so?
If one can use a Bluetooth to HID keyboard emulator dongle using BLE 4.0, is it possible to pair an iOS device which support BLE 4.0 with it and how?
Has anyone tried any particular HID keyboard emulator dongle supporting
BLE 4.0? If yes then any preferences. I came across Bluegiga USB Dongle but not sure if it will solve the purpose.
I would be thankful for your input.
Even with a Bluetooth 4.0-compliant device, communication via standard ("high energy") Bluetooth with an iOS device is still only allowed with MFi-compliant devices. Bluetooth Low Energy communication with iOS devices is the part that's now completely open and unrestricted by Apple. If you wish to send data to another computing device (Windows, Mac, Android, etc.), Bluetooth LE is what you're going to need (short of someone reverse-engineering the Bonjour over Bluetooth PAN connections).
As of iOS 6.0, iOS devices can make themselves look like Bluetooth LE peripherals, so desktop computers set up as Bluetooth LE central devices can connect to them. You could put together your own profile for communication, since you'd control the iOS and Windows sides of things, or you could make your iOS device mimic a standard keyboard, heart rate sensor, etc.
As far as compatible dongles, the answers to this question list several Bluetooth LE dongles that are known to work with Core Bluetooth on the Mac. The CSR ones seem to be the most frequently cited there and among other people I've talked to. I can't speak for Windows support, but I'd assume there would be driver support there, and I hear Windows 8.1 expands support for Bluetooth LE.
I do have the BLED112 (the Bluegiga USB dongle), and that shows up as a comm port when its drivers are installed. You might talk to that in a slightly different way than you would one of these other Bluetooth LE dongles. I know Bluegiga uses it on the Windows side to capture a little more data than I think you'd normally get from one of these other dongles. The other dongles might present a more universal interface for interacting with Bluetooth LE on the Windows side.
I am working on building or using an existing bluetooth HID device (something like this http://www.icontrolpad.com) and to get my iOS device to read the data coming from it. So i have some questions regarding this:-
Is it possible at all to do this, considering that the Bluetooth stack is not available on non jail broken devices.
Do i need to register with apples Mfi program? If i don't need to, what are the alternatives?
If i do register with Apple's Mfi program will i get access frameworks that will allow me to read data off the Bluetooth stack.
Considering that there will be a custom application sitting on the iOS device that needs to communicate with the HW im building, what are the implications w.r.t the approval of the app from Apple's side?
Thanks in advance, any help is greatly appreciated!
Core Bluetooth framework is available for Bluetooth Low Energy devices on iOS 5, no MFi membership is required.
With Made for iPhone, you basically get a serial pipe to your device using the ExternalAccesory Framework (in fact, it IS using the serial port profile plus some authentication). So you while you cannot use an actual HID device, you could send your data over.