I want to build an IOT (Internet of things) device using the Bluetooth Smart protocol / GATT. I'm a bit confused how I'd make this conform with the BLE specs. All the profiles listed seem to focus on health-stuff and I'm having trouble making the conceptual leap to other applications.
Assume this device is a coffee maker, and I want to :
Get an alert when the water / coffee needs a refill
Set a timer for when to make coffee
Recognize my coffee preference vs my wife's
Send arbitrary text to be displayed on the LED
Question
What are the appropriate Charactertistics, Services, and Profiles I should use?
Do I need to register these profiles, or UIDs anywhere (e.g. Bluetooth.org)
Where do I enable security? (I don't want anyone to know I put lots of sugar in my coffee?
Where do I send my custom text? In a custom structure?
You have to search for the customized profile (including all services and characteristics) of your specific coffee maker. There isn't a predesigned profile.
No, you don't need to register the profile with it's UUID's. It is already used from your coffee maker ;)
This should be the last point of your work and depend on your manager device.
You have to send your data to the right characteristics which depend on the customized profile of your coffee maker.
Related
I'm developing a 'smart watch' which is connected via BLE to an app on a phone.
My idea is to show the direction on the watch so the user doesn't have to remove the phone from their pocket while using their favorite application (Waze, Google Maps, ...)
Is there any standard to send navigation information (turn left/right, ...) to a smart device over BLE?
It seems there are apps that do this, but they are fully custom: https://www.youtube.com/watch?v=naAhe7DTKYM. I'm checking on the side of Android Auto, but it seems to me it's only by USB cable.
Off the top of my head there are two services that you can use for this purpose:-
Location and Navigation Service (Used mostly for outdoor):-
"The Location and NavigationService(LN Service)exposes location and
navigation-related data from a Location and Navigation sensor
(Server)intended for outdoor activity applications."
Indoor Positioning Service (Used mostly for indoor):-
"The Indoor Positioning Service exposes location information to
support mobile devices to position themselves in an environment where
GNSS signals are not available, for example in indoor premises. The
location information is mainly exposed via advertising and the
GATT-based service is primarily intended for configuration."
If both are not 100% suitable for your application, then you can create your custom profile that contains one or both of these services in addition to a custom service (turn left/right etc). This way, any watch can connect to the phone and get the adopted services info, and for any additional info watch can add support for the custom service.
When I was looking for such "standard way" for turn-by-turn navigation (official Bluetooth specification for navigation, similar to official Battery or Heart rate services), I didn't find anything suitable, but I still have a feeling like maybe I've missed something.
Those services Youssif Saeed suggested are for different type of navigation, not turn-by-turn unfortunatery.
Some apps (Sygic for example) may integrate their own BLE service.
I guess the application you linked reads notifications (posted by navigation apps like Waze, Google Maps), extract instructions from them, and then send to an external device via BLE.
I am working on a project where I need to send an amount to a credit card terminal such as verifone vx520 or Ingenico ict250.
If it was from Windows 10, would there be a way to communicate with the terminals to show an amount on the terminal screen?
(we are trying to avoid manual input on the terminal)
If it is not possible to send an amount to either verifone vx520 or Ingenico ict250, are there any other terminals that can accumplish this?
If so, it would be very helpful if you can also show me their API documents.
Thanks
The device you want to use is called CAT (Credit Authorization Terminal) in the UnifiedPOS specification.
Get the specification PDF from this page and refer to the specification from page 281.
Document -- retail/17-07-32 (UnifiedPOS Retail Peripheral Architecture, Version 1.14.1)
However, this device specification has been standardized at the request from the Japanese market and is likely not implemented in countries other than Japan.
Perhaps neither Verifone nor Ingenico provide control of CAT devices OPOS/POS for.NET/JavaPOS.
It seems that other vendors do not have it.
Vendors such as Verifone and Ingenico have their own developer sites and SDKs.
Also, vendors will have information on ISVs that use them to provide applications/solutions with the features you want.
Register to a site such as the following to get information on SDKs and applications/solutions.
Verifone Developper Central
Retail Solutions
Ingenico ePayments Developer hub
POS Solutions
I am quite new to the jack audio software.
I was wondering, whether it is possible to specific applications to specific outputs.
I know could make a virtual device that I can connect anyway I want. But that only works if I am able to select the virtual device as output device within the application, right?
But not all applications have the option to chose outputs.
So the question is whether I can select an application in jack audio and route it the a device of my choice.
Being able to do this is the main reason why Jack exists. You can connect anything to anything with an external patch bay, you don't need to use the UI of the application.
Examples of graphical patch bays you can use are (my) Patchage, Catia, and qjackctl. You can also use jack_connect on the command line.
I would like to make iOS7 Application like MLB
I was reading Article is http://www.engadget.com/2013/09/27/mlb-to-use-ios-7s-ibeacon/
this article said to :
MLB application installed ,
Beacon(Bluetooth LE device) sendging Proximity UUID for MLB application,
MLB application make Passbook ticket or update ticket (and Lock screen update passbook)
This feature, Can only have one special applications for Apple authentication?
some articles said to :
Location based marketing and Passbook tickets
This particular application makes iBeacons an extension of the geofencing Apple enabled in last year’s Passbook, which lets an installed pass, ticket or loyalty card popup on the lock screen when you cross the geofence threshold of a defined GPS location. Using BLE, a merchant or other provider can define more targeted “micro-locations” to trigger an alert, in some cases requiring that you be in the presence of an iBeacon in order to validate a Passbook entry .
i don't understand 'particular application'...
iOS7 application can make publish passbook use iBeacon without user event?
(i don't know well english ;; sorry;;)
Bluetooth Beacons support is a new addition to iOS 7.
Rather than using GPS, it works by determining the phone's location relevant to a Bluetooth beacon. These beacons constantly broadcast a UUID that identifies them. Beacons offer more accuracy indoors as GPS doesn't work that well in covered spaces.
The standard CoreLocation framework defines a new class called CLBeaconRegion:
A CLBeaconRegion object defines a type of region that is based on the device’s proximity to a Bluetooth beacon, as opposed to a geographic location. A beacon region looks for devices whose identifying information matches the information you provide. When that device comes in range, the region triggers the delivery of an appropriate notification.
An apps can request to be informed when they are near these beacons. This is how the MLB app works. It is programmed to recognize these beacons and to provide the user with offers and information based on location.
In addition to support within apps, Passkit also provides the support these beacons. It works in roughly the same way. The pkpass file contains a list of UUIDs that identify various beacons and when the phone is near a beacon, the pass is shown on the lock screen.
You can read more about Passkit's support by looking at the package format guide
https://developer.apple.com/library/ios/documentation/UserExperience/Reference/PassKit_Bundle/Chapters/LowerLevel.html#//apple_ref/doc/uid/TP40012026-CH3-SW4
Hopefully that answers your question.
I've an app with AdMobs in Google Play but I have doubts.
PX DP converter is a simple tool for developers and designers.
Basically this application is for my learning.
PX DP Converter | Google Play
I have understood that if I use AdMobs I can't see or click on the advertising or google will ban my account.
I specified in "TestDevice" the emulator and id of my terminal, so I see a banner instead of advertising and the advertising appears in others smartphones, it works correctly. (sorry for my bad English)
My questions are ...
I have a couple of smartphones with different accounts.
Can I click on advertising using local wi-fi (home) without getting banned?
can i use the app with advertising without register my ID on "TestDevice" while I don't click?
I doubt that Admob is likely to ban you for a few test clicks on your development device. But they do have algorithms that track and detect aberrant clicks so if you abuse this they will catch and ban you.
Yes