Xiaomi Vela JS APP

# Bluetooth bluetooth

# Interface Declaration

{ "name": "system.bluetooth.ble" }

# Import Module

import bluetoothBLE from '@system.bluetooth.ble'
or
const bluetoothBLE = require("@system.bluetooth.ble")

# Interface Definition

# bluetoothBLE.createScanner()

Initializes the Bluetooth module.

# Parameters:

None

# Return Value:

Scanner instance

# Example:

const scanner = bluetoothBLE.createScanner();

# bluetoothBLE.createGattClientDevice(deviceId, addressType)

Creates a GattClientDevice (Generic Attribute Profile client) instance.

# Parameters:

Parameter Name Type Required Description
deviceId String Yes Peer device address, for example: "XX:XX:XX:XX:XX:XX".
addressType String No Indicates the device address type. Optional values are: 'PUBLIC', 'RANDOM', 'ANONYMOUS', 'UNKNOWN'. Default value: UNKNOWN.

# Return Value:

GattClientDevice instance.

# Example:

const gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX", 'PUBLIC');

# Scanner

# Methods

# startBLEScan(OBJECT)

Initiates a BLE scanning process.

# Properties of the OBJECT:

Property Name Type Required Description
filters Array<ScanFilter> Yes Peer device address, for example: "XX:XX:XX:XX:XX:XX".
options ScanOptions No Indicates the scanning parameter configuration. Optional parameters.
success Function No Success callback.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# ScanFilter

Scanning filter parameters.

Parameter Name Type Readable Writable Description
deviceId String Yes Yes Indicates the filtered BLE device address, for example: "XX:XX:XX:XX:XX:XX".
name String Yes Yes Indicates the filtered BLE device name.
serviceUuid String Yes Yes Indicates the filtered devices that contain the service with this UUID, for example: 00001888-0000-1000-8000-00805f9b34fb.

# ScanOptions

Scanning configuration parameters.

Parameter Name Type Readable Writable Description
dutyMode ScanDuty Yes Yes Indicates the scanning mode. The default value is SCAN_MODE_LOW_POWER.

# ScanDuty

Enumeration of scanning modes.

Name Default Value Description
SCAN_MODE_LOW_POWER 0 Indicates the low-power mode. Default value.
SCAN_MODE_BALANCED 1 Indicates the balanced mode.
SCAN_MODE_LOW_LATENCY 2 Indicates the low-latency mode.

# Example:

let scanner = bluetoothBLE.createScanner();
scanner.startBLEScan({
  filters: [
    {
      deviceId: "XX:XX:XX:XX:XX:XX",
      name: "test",
      serviceUuid: "00001888-0000-1000-8000-00805f9b34fb",
    }
  ],
  options: {
    dutyMode: ScanDuty.SCAN_MODE_LOW_POWER,
  },
  success: function () {
    console.log(`startBLEScan success`);
  },
  fail: function (data, code) {
    console.log(`startBLEScan fail, code = ${code}`);
  },
  complete: function () {
    console.log(`startBLEScan complete`);
  },
});

# Scanner.stopBLEScan()

Stops the BLE scanning process.

# Parameters:

None

# Return Value:

None

# Example:

scanner.stopBLEScan();

# Scanner.getScanState(OBJECT)

Obtains the current scanning state of the Scanner.

# Properties of the OBJECT:

Property Name Type Required Description
success Function No Success callback.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Properties of the success callback object:

Property Name Type Description
scanState ScanState Scanning state.

# ScanState

Enumeration of BLE scanning states.

Name Default Value Description
STATE_NON_SCAN 0 Indicates that the local device has not started scanning for surrounding devices.
STATE_SCANING 1 Indicates that the local device is scanning for surrounding devices.

# Example:

scanner.getScanState({
  success: function (data) {
    console.log(`getScanState success, state = ${data.scanState}`);
  },
  fail: function (data, code) {
    console.log(`getScanState fail, code = ${code}`);
  },
  complete: function () {
    console.log(`getScanState complete`);
  },
});

# Scanner.subscribeBLEDeviceFind(OBJECT)

Subscribes to BLE device discovery reporting events.

# Properties of the OBJECT:

Property Name Type Required Description
callback Function No Device discovery reporting callback.
fail Function No Failure callback.

# Return Value:

Type Description
Number Subscription ID.

# Parameters of the callback:

Type Description
Array<ScanResult> Scanning result reporting data.

# ScanResult

Scanning result reporting data.

Parameter Name 类型 Readable Writable Description
deviceId String Yes No Indicates the address of the scanned device, for example: "XX:XX:XX:XX:XX:XX".
rssi Number Yes No Indicates the RSSI value of the scanned device.
data ArrayBuffer Yes No Indicates the broadcast packet sent by the scanned device.
addressType String Yes No Indicates the device address type. The values can be: 'PUBLIC', 'RANDOM', 'ANONYMOUS', 'UNKNOWN'.

# Example:

let scanner = bluetoothBLE.createScanner();
const subscribeId = scanner.subscribeBLEDeviceFind({
  callback(data) {
    for (let i = 0; i < data.length; i++) {
      console.info(`subscribeBLEDeviceFind deviceId = ${data[i].deviceId}, rssi = ${data[i].rssi}, addressType = ${data[i].addressType}`);
    }
  },
  fail(data, code) {
    console.log(`subscribeBLEDeviceFind fail, code = ${code}`);
  },
});

# Scanner.unsubscribeBLEDeviceFind(subscribeId)

Cancels the subscription to BLE device discovery reporting events.

# Parameters:

Type Description
Number Subscription ID

# Return Value:

None

# Example:

scanner.unsubscribeBLEDeviceFind(subscribeId);

# Scanner.close()

Closes the Scanner function. After this interface is called, the Scanner instance can no longer be used.

# Parameters:

None

# Return Value:

None

# Example:

scanner.close();

# GattClientDevice

# Methods

# GattClientDevice.connect(OBJECT)

The client initiates a connection to a remote Bluetooth Low Energy device.

# Properties of the OBJECT:

| Property Name | Type | Description | | | | -------- | -------- | ---- | ---------------- | | success | Function | No | Callback upon successful instruction sending by the client (not upon successful connection). | | fail | Function | No | Failure callback. | | complete | Function | No | Callback after execution completion. |

# Parameters of the success callback:

None

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.connect({
  success: function () {
    console.log(`send connect success`);
  },
  fail: function (data, code) {
    console.log(`connect fail, code = ${code}`);
  },
  complete: function () {
    console.log(`connect complete`);
  }
});

# GattClientDevice.disconnect(OBJECT)

The client disconnects from a remote Bluetooth Low Energy device.

# Properties of the OBJECT:

| Property Name | Type | Description | | | | -------- | -------- | ---- | ---------------- | | success | Function | No | Callback upon successful instruction sending by the client. | | fail | Function | No | Failure callback. | | complete | Function | No | Callback after execution completion. |

# Parameters of the success callback:

None

# Example:

gattClientDevice.disconnect({
  success: function () {
    console.log(`disconnect success`);
  },
  fail: function (data, code) {
    console.log(`disconnect fail, code = ${code}`);
  },
  complete: function () {
    console.log(`disconnect complete`);
  }
});

# GattClientDevice.close()

Closes the client function, deregisters the client from the protocol stack. After this interface is called, the GattClientDevice instance can no longer be used.

# Return Value:

Type Description
Boolean Returns true if the interface is called successfully, and false if the call fails.
let result = gattClientDevice.close();
console.log(`gattClientDevice close ${result}`);

# GattClientDevice.getServices(OBJECT)

The client obtains all services of a Bluetooth Low Energy device, that is, service discovery.

# Properties of the OBJECT:

Property Name Type Required Description
success Function No Success callback.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

Type Description
Array<GattService> Service-side service data.

# Example:

function outputServices(services) {
  console.log("bluetooth services size is ", services.length);
  for (let i = 0; i < services.length; i++) {
    console.log("bluetooth serviceUuid is " + services[i].serviceUuid);
  }
}

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.connect();
gattClientDevice.getServices({
  success: function (services) {
    outputServices(services);
  },
  fail: function (data, code) {
    console.log(`getServices fail, code = ${code}`);
  },
  complete: function () {
    console.log(`getServices complete`);
  },
});

# GattClientDevice.readCharacteristicValue(OBJECT)

The client reads the characteristic value of a specific service from a Bluetooth Low Energy device.

# Properties of the OBJECT:

Property Name Type Required Description
characteristic BLECharacteristic Yes The characteristic value to be read.
success Function No Callback upon data return from the server.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

Type Description
BLECharacteristic The characteristic value read by the client, obtained through the callback function.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
let descriptors = [];
let bufferDesc = new ArrayBuffer(8);
let descV = new Uint8Array(bufferDesc);
descV[0] = 11;
let descriptor = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  descriptorUuid: "00002903-0000-1000-8000-00805F9B34FB",
  descriptorValue: bufferDesc,
};
descriptors[0] = descriptor;

let bufferCCC = new ArrayBuffer(8);
let cccV = new Uint8Array(bufferCCC);
cccV[0] = 1;
let characteristic = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  characteristicValue: bufferCCC,
  descriptors: descriptors,
};

gattClientDevice.readCharacteristicValue({
  characteristic,
  success: function (data) {
    console.log(`readCharacteristicValue uuid: ${data.characteristicUuid}`);
    if (data.characteristicValue) {
      let value = new Uint8Array(data.characteristicValue);
      console.log(`readCharacteristicValue value: ${value[0]}, ${value[1]}, ${value[2]}, ${value[3]}`);
    }
  },
  fail: function (data, code) {
    console.log(`readCharacteristicValue fail, code = ${code}`);
  },
  complete: function () {
    console.log(`readCharacteristicValue complete`);
  },
});

# GattClientDevice.readDescriptorValue(OBJECT)

The client reads the descriptor contained in a specific characteristic from a Bluetooth Low Energy device.

# Properties of the OBJECT:

Property Name Type Required Description
descriptor BLEDescriptor Yes The descriptor to be read.
success Function No Callback upon data return from the server.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

Type Description
BLEDescriptor Interface parameter definition for describing the descriptor.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
let bufferDesc = new ArrayBuffer(8);
let descV = new Uint8Array(bufferDesc);
descV[0] = 11;
let descriptor = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  descriptorUuid: "00002903-0000-1000-8000-00805F9B34FB",
  descriptorValue: bufferDesc,
};

gattClientDevice.readDescriptorValue({
  descriptor,
  success: function (data) {
    console.log("readDescriptorValue uuid: " + data.descriptorUuid);
    if (data.descriptorValue) {
      let value = new Uint8Array(data.descriptorValue);
      console.log(`readDescriptorValue value: ${value[0]}, ${value[1]}, ${value[2]}, ${value[3]}`);
    }
  },
  fail: function (data, code) {
    console.log(`readDescriptorValue fail, code = ${code}`);
  },
  complete: function () {
    console.log(`readDescriptorValue complete`);
  },
});

# GattClientDevice.writeCharacteristicValue(OBJECT)

The client writes a specific characteristic value to a Bluetooth Low Energy device.

# Properties of the OBJECT:

Property Name Type Required Description
characteristic BLECharacteristic Yes Binary value and other parameters corresponding to the Bluetooth device characteristic.
success Function No Callback upon successful instruction sending by the client (not upon server-side success).
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

None

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
let descriptors = [];
let bufferDesc = new ArrayBuffer(8);
let descV = new Uint8Array(bufferDesc);
descV[0] = 11;
let descriptor = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  descriptorUuid: "00002903-0000-1000-8000-00805F9B34FB",
  descriptorValue: bufferDesc,
};
descriptors[0] = descriptor;

let bufferCCC = new ArrayBuffer(8);
let cccV = new Uint8Array(bufferCCC);
cccV[0] = 1;
let characteristic = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  characteristicValue: bufferCCC,
  descriptors: descriptors,
};

gattClientDevice.writeCharacteristicValue({
  characteristic,
  success: function () {
    console.log(`writeCharacteristicValue success`);
  },
  fail: function (data, code) {
    console.log(`writeCharacteristicValue fail, code = ${code}`);
  },
  complete: function () {
    console.log(`writeCharacteristicValue complete`);
  }
});

# GattClientDevice.writeDescriptorValue(OBJECT)

The client writes binary data to a specific descriptor of a Bluetooth Low Energy device.

# Properties of the OEJBCT:

Property Name Type Required Description
descriptor BLEDescriptor Yes Binary value and other parameters corresponding to the Bluetooth device descriptor.
success Function No Callback upon successful instruction sending by the client (not upon server-side success).
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

None

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
let bufferDesc = new ArrayBuffer(8);
let descV = new Uint8Array(bufferDesc);
descV[0] = 22;
let descriptor = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  descriptorUuid: "00002903-0000-1000-8000-00805F9B34FB",
  descriptorValue: bufferDesc,
};

gattClientDevice.writeDescriptorValue({
  descriptor,
  success: function () {
    console.log(`writeDescriptorValue success`);
  },
  fail: function (data, code) {
    console.log(`writeDescriptorValue fail, code = ${code}`);
  },
  complete: function () {
    console.log(`writeDescriptorValue complete`);
  }
});

# GattClientDevice.setBLEMtuSize(OBJECT)

The client negotiates the Maximum Transmission Unit (MTU) size with a remote Bluetooth Low Energy device. Note: This can only be used after a successful connection is established using the connect interface.

# Properties of the OEJECT:

Property Name Type Required Description
mtu Number Yes Set the range to 22-512.
success Function No Callback upon successful instruction sending by the client (not upon server-side success).
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

None

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.setBLEMtuSize({
  mtu: 128,
  success: function () {
    console.log(`setBLEMtuSize success`);
  },
  fail: function (data, code) {
    console.log(`setBLEMtuSize fail, code = ${code}`);
  },
  complete: function () {
    console.log(`setBLEMtuSize complete`);
  }
});

# GattClientDevice.setNotifyCharacteristicChanged(OBJECT)

Sends a request to the server to set notifications for this characteristic value.

# Properties of the OBJECT:

Property Name Type Required Description
characteristic BLECharacteristic Yes Bluetooth Low Energy characteristic.
enable Boolean Yes Set to true to enable receiving notifications, and false to disable.
success Function No Callback upon successful instruction sending by the client (not upon server-side success).
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Parameters of the success callback:

None

# Example:

let arrayBuffer = new ArrayBuffer(8);
let descV = new Uint8Array(arrayBuffer);
descV[0] = 11;
let descriptor = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  descriptorUuid: "00002902-0000-1000-8000-00805F9B34FB",
  descriptorValue: arrayBuffer,
};
descriptors[0] = descriptor;

let arrayBufferC = new ArrayBuffer(8);
let characteristic = {
  serviceUuid: "00001810-0000-1000-8000-00805F9B34FB",
  characteristicUuid: "00001820-0000-1000-8000-00805F9B34FB",
  characteristicValue: arrayBufferC,
  descriptors: descriptors,
};

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.setNotifyCharacteristicChanged({
  characteristic,
  enable: false,
  success: function () {
    console.log(`setNotifyCharacteristicChanged success`);
  },
  fail: function (data, code) {
    console.log(`setNotifyCharacteristicChanged fail, code = ${code}`);
  },
  complete: function () {
    console.log(`setNotifyCharacteristicChanged complete`);
  }
});

# GattClientDevice.onBLECharacteristicChange

Subscribes to characteristic value change events of a Bluetooth Low Energy device. The setNotifyCharacteristicChanged interface must be called first to receive notifications from the server.

# Event callback parameters:

Type Description
BLECharacteristic Characteristic value of the Bluetooth Low Energy device.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.onBLECharacteristicChange = function (data) {
  console.log(`readCharacteristicValue uuid: ${data.characteristicUuid}`);
  if (data.characteristicValue) {
    let value = new Uint8Array(data.characteristicValue);
    console.log(`readCharacteristicValue value: ${value[0]}, ${value[1]}, ${value[2]}, ${value[3]}`);
  }
}

# GattClientDevice.onBLEConnectionStateChange

The client subscribes to connection state change events of a Bluetooth Low Energy device.

# Event callback parameters:

Type Description
BLEConnectionState Indicates the connection state.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.onBLEConnectionStateChange = function (state) {
  console.log(`onBLEConnectionStateChange state = ${state}`);
};

# GattClientDevice.getDeviceName(OBJECT)

The client obtains the name of a remote Bluetooth Low Energy device.

# Properties of the OBJECT:

Property Name Type Required Description
success Function No Success callback.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Properties of the success callback object parameters:

Parameter Name Type Description
deviceName String The client obtains the name of the peer server device through the registered callback function.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");
gattClientDevice.getDeviceName({
  success: function (data) {
    console.log(`getDeviceName success, name = ${data.deviceName}`);
  },
  fail: function (data, code) {
    console.log(`getDeviceName fail, code = ${code}`);
  },
  complete: function () {
    console.log(`getDeviceName complete`);
  },
});

# GattClientDevice.getRssiValue(OBJECT)

The client obtains the Received Signal Strength Indication (RSSI) of a remote Bluetooth Low Energy device. This can only be used after a successful connection is established using the connect interface.

# Properties of the OBJECT:

Property Name Type Required Description
success Function No Success callback.
fail Function No Failure callback.
complete Function No Callback after execution completion.

# Properties of the success callback object parameters:

Property Name Type Description
rssi Number Signal strength in dBm, obtained through the registered callback function.

# Example:

let gattClientDevice = bluetoothBLE.createGattClientDevice("XX:XX:XX:XX:XX:XX");

gattClientDevice.getRssiValue({
  success: function (data) {
    console.log(`getRssiValue success, rssi = ${data.rssi}`);
  },
  fail: function (data, code) {
    console.log(`getRssiValue fail, code = ${code}`);
  },
  complete: function () {
    console.log(`getRssiValue complete`);
  },
});

# GattService

Describes the object attribute definitions of GattService.

Property Name Type Readable Writable Description
serviceUuid String Yes Yes UUID of a specific service (service), for example: 00001888-0000-1000-8000-00805f9b34fb.
isPrimary Boolean Yes Yes Set to true if it is a primary service, and false otherwise.
characteristics Array<BLECharacteristic> Yes Yes List of characteristics contained in the current service.
includeServices Array<GattService> Yes Yes Other services that the current service depends on.

# BLECharacteristic

Describes the object attribute definitions of characteristic.

Property Name Type Readable Writable Description
serviceUuid String Yes Yes UUID of a specific service (service), for example: 00001888-0000-1000-8000-00805f9b34fb.
characteristicUuid String Yes Yes UUID of a specific characteristic (characteristic), for example: 00002a11-0000-1000-8000-00805f9b34fb.
characteristicValue ArrayBuffer Yes Yes Binary value corresponding to the characteristic.
descriptors Array<BLEDescriptor> Yes Yes List of descriptors for a specific characteristic.
properties GattProperties Yes Yes Property description for a specific characteristic.

# BLEDescriptor

Describes the object attribute definitions of descriptor.

Parameter Name Type Readable Writable Description
serviceUuid String Yes Yes UUID of a specific service (service), for example: 00001888-0000-1000-8000-00805f9b34fb.
characteristicUuid String Yes Yes UUID of a specific characteristic (characteristic), for example: 00002a11-0000-1000-8000-00805f9b34fb.
descriptorUuid String Yes Yes UUID of the descriptor (descriptor), for example: 00002902-0000-1000-8000-00805f9b34fb.
descriptorValue ArrayBuffer Yes Yes Binary value corresponding to the descriptor.

# GattProperties

Property description definitions for specific characteristics.

Property Name Type Required Description
read Boolean No Indicates whether the characteristic value supports the read operation.
write Boolean No Indicates whether the characteristic value supports the write operation. true indicates that a response from the peer device is required.
writeNoResponse Boolean No Indicates whether the characteristic value supports the write operation. true indicates that the characteristic supports the write operation and no response from the peer device is required.
notify Boolean No Indicates whether the characteristic value supports the notify operation. true indicates that the characteristic can notify the peer device.
indicate Boolean No Indicates whether the characteristic value supports the indicate operation. true indicates that the characteristic can notify the peer device and a response from the peer device is required.

# BLEConnectionState

Enumeration of BLE connection states.

Name State Value Description
STATE_DISCONNECTED 0 Indicates that the profile is disconnected.
STATE_CONNECTING 1 Indicates that the profile is connecting.
STATE_CONNECTED 2 Indicates that the profile is connected.
STATE_DISCONNECTING 3 Indicates that the profile is disconnecting.

# Status Codes

Error Code Description
203 This function is not supported.
205 Duplicate submission, for example: reconnecting to the gattClient after a successful connection.
10001 The system Bluetooth is not turned on.
10008 Unknown Bluetooth error.
10012 Connection error.
10013 No memory or connection resources.
10014 The specified Bluetooth device is not found.

# Background Running Restrictions

Prohibited.

← Cryptographic Algorithm crypto →

On This Page
Interface Declaration
Import Module
Interface Definition
bluetoothBLE.createScanner()
bluetoothBLE.createGattClientDevice(deviceId, addressType)
Methods
startBLEScan(OBJECT)
Scanner.stopBLEScan()
Scanner.getScanState(OBJECT)
Scanner.subscribeBLEDeviceFind(OBJECT)
Scanner.unsubscribeBLEDeviceFind(subscribeId)
Scanner.close()
Methods
GattClientDevice.connect(OBJECT)
GattClientDevice.disconnect(OBJECT)
GattClientDevice.close()
GattClientDevice.getServices(OBJECT)
GattClientDevice.readCharacteristicValue(OBJECT)
GattClientDevice.readDescriptorValue(OBJECT)
GattClientDevice.writeCharacteristicValue(OBJECT)
GattClientDevice.writeDescriptorValue(OBJECT)
GattClientDevice.setBLEMtuSize(OBJECT)
GattClientDevice.setNotifyCharacteristicChanged(OBJECT)
GattClientDevice.onBLECharacteristicChange
GattClientDevice.onBLEConnectionStateChange
GattClientDevice.getDeviceName(OBJECT)
GattClientDevice.getRssiValue(OBJECT)
Status Codes
Background Running Restrictions