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# nRF Toolbox
The nRF Toolbox is a container app that stores your Nordic Semiconductor apps for Bluetooth Low Energy
in one location.
The nRF Toolbox is a container app that stores your Nordic Semiconductor apps for Bluetooth Low Energy in one location.
It contains applications demonstrating standard Bluetooth LE profiles:
* **Cycling Speed and Cadence**,
* **Running Speed and Cadence**,
* **Heart Rate Monitor**,
* **Blood Pressure Monitor**,
* **Health Thermometer Monitor**,
* **Glucose Monitor**,
* **Continuous Glucose Monitor**,
* **Universal Asynchronous Receiver/Transmitter (UART)**,
* **Throughput**,
* **Direction Finder**,
* **Cycling Speed and Cadence**
* **Running Speed and Cadence**
* **Heart Rate Monitor**
* **Blood Pressure Monitor**
* **Health Thermometer Monitor**
* **Glucose Monitor**
* **Continuous Glucose Monitor**
* **Universal Asynchronous Receiver/Transmitter (UART)**
* **Throughput**
* **Direction Finder**
* **Blinky (LBS) Service**
**_NOTE:_** The Proximity profile is not included in this version of the app. If you need it, please download the previous version.
**_NOTE:_** The Proximity profile is not included in this version of the app. If you need it, please download the previous [version](https://github.com/NordicSemiconductor/Android-nRF-Toolbox/releases/tag/3.3.1).
### How to import to Android Studio
The production version of nRF Toolbox depends on
[Kotlin BLE Library](https://github.com/NordicSemiconductor/Kotlin-BLE-Library) and demonstrates
use of the [Android BLE Common Library](https://github.com/NordicPlayground/Android-Common-Libraries),
which contains utility classes used by apps developed by Nordic Semiconductor.
[Kotlin BLE Library](https://github.com/NordicSemiconductor/Kotlin-BLE-Library). The single profile implementation This also utilizes [Android BLE Common Library](https://github.com/NordicPlayground/Android-Common-Libraries),
which contains utility classes such as Bluetooth LE permission, Bluetooth LE scanner, and so on, used by apps developed by Nordic Semiconductor.
You may also include the BLE Library and BLE Common Library as modules. Clone the library project
You may also include the BLE Library and the BLE Common Library as modules. Clone the library project
to the same root folder.
If you prefer a different name for BLE library, update the
If you prefer a different name for the BLE library, update the
[*settings.gradle*](https://github.com/NordicSemiconductor/Android-nRF-Toolbox/blob/master/settings.gradle)
file.
If you get ["Missing Feature Watch" error](https://github.com/NordicSemiconductor/Android-nRF-Toolbox/issues/41#issuecomment-355291101),
switch the configuration to 'app'.
If you get ["Missing Feature Watch" error](https://github.com/NordicSemiconductor/Android-nRF-Toolbox/issues/41#issuecomment-355291101), switch the configuration to 'app'.
### BleManager and how to use it
### BLE Connection
There are 2 different solutions how to use the manager shown in different profiles.
The very basic approach is used by the BPS nd GLS profiles. Each of those activities holds a
static reference to the manager. Keeping the manager as a view model object protects from disposing it
when device orientation changes and the activities are being destroyed and recreated. However, this
approach does not allow to keep the connections in background mode and therefore is not a solution
that should be used in any production-ready application.
A better implementation may be found in CGMS, CSC, HRS, HTS, PRX, RSCS, UART. The `BleManager` instance is maintained
by the running service. The service is started in order to connect to a device and stopped when user
decides to disconnect from it. When an activity is destroyed it unbinds from the service, but the
service is still running, so the incoming data may continue to be handled. All device-related data
are kept by the service and may be obtained by a activity when it binds to it in order to be
shown to the user.
The BLE connection is maintained by running a service. The service starts to connect to a device and stops when the user decides to disconnect from it. When an activity is destroyed, it unbinds from the service; however, the service remains running, allowing incoming data to continue being handled. The service keeps all device-related data and may be obtained by an activity when it binds to it to be shown to the user. Instead of maintaining individual profile service, this structure will create one service for all connected devices.
To add a new profile, create a subtype of _ServiceManager_, which provides logic for observing data interactions with Bluetooth devices.
### Nordic UART Service
The UART profile allows for fast prototyping of devices. The service itself is very simple, having
just 2 characteristics, one for sending data and one for receiving. The data may be any byte array
but it is very often used with just text. Each UART configuration can be created as a separate profile.
just 2 characteristics, one for sending data and one for receiving. UART preset configuration can be created as a separate profile.
Each of them, when pressed, will send the stored command to the device.
You may export your configuration to XML and share between other devices. Swipe the screen to
right to show the log with all events.
### Device Firmware Update
**DFU is now available as a separate application**
**_NOTE:_** The Device Firmware Update (DFU) feature has been removed from this application and is now offered as a standalone app.
https://github.com/NordicSemiconductor/Android-DFU-Library
### Dependencies
nRF Toolbox depends on [Kotlin BLE Library](https://github.com/NordicSemiconductor/Kotlin-BLE-Library)
which may to be cloned into the same root folder as this app. If you prefer a different name,
which may be cloned into the same root folder as this app. If you prefer a different name,
update the [*settings.gradle*](https://github.com/NordicSemiconductor/Android-BLE-Library/blob/master/settings.gradle) file.
The nRF Toolbox also uses the nRF Logger API library which may be found here:
The nRF Toolbox also uses the nRF Logger API library, which may be found here:
https://github.com/NordicSemiconductor/nRF-Logger-API. The library is included in dependencies
in *build.gradle* file. This library allows the app to create log entries in the
[nRF Logger](https://play.google.com/store/apps/details?id=no.nordicsemi.android.log) application.
Please, read the library documentation on GitHub for more information about the usage and permissions.
The graph in HRM profile is created using the [MPAndroidChart v3.1.0](https://github.com/PhilJay/MPAndroidChart)
The graph in the HRM profile is created using the [MPAndroidChart v3.1.0](https://github.com/PhilJay/MPAndroidChart)
contribution based on the [Apache 2.0 license](http://www.apache.org/licenses/LICENSE-2.0).
### Note