Variable CentralConst

Type declaration

• addEventListener:function

  • addEventListener<T>(type, listener): void

  • Type Parameters

    • T extends keyof CentralEventMap

    Parameters

    • type: T

    • listener: ((ev) => void)

      • • (ev): void

        • Parameters

          • ev: CentralEventMap[T]

          Returns void

    Returns void

• connectPeripheral:function

  • connectPeripheral(peripheral, opt?): Promise<void>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • Optional opt: {
          connectionStatusCallback?: ((ev) => void);
          timeout?: number;
      }

      • Optional connectionStatusCallback?: ((ev) => void)

        • • (ev): void

          • Parameters

            • ev: PeripheralConnectionEvent

            Returns void

      • Optional timeout?: number

    Returns Promise<void>

• disconnectPeripheral:function

  • disconnectPeripheral(peripheral): Promise<void>

  • Parameters

    • peripheral: PeripheralOrSystemId

    Returns Promise<void>

• getBluetoothState:function

  • getBluetoothState(): BluetoothState

  • Returns BluetoothState

• getCharacteristicProperties:function

  • getCharacteristicProperties(peripheral, serviceUuid, characteristicUuid, instanceIndex?): Promise<number>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    • characteristicUuid: string

    • instanceIndex: number = 0

    Returns Promise<number>

• getDiscoveredServices:function

  • getDiscoveredServices(peripheral): Promise<string[]>

  • Parameters

    • peripheral: PeripheralOrSystemId

    Returns Promise<string[]>

• getPeripheralMtu:function

  • getPeripheralMtu(peripheral): Promise<number>

  • Parameters

    • peripheral: PeripheralOrSystemId

    Returns Promise<number>

• getPeripheralName:function

  • getPeripheralName(peripheral): Promise<string>

  • Parameters

    • peripheral: PeripheralOrSystemId

    Returns Promise<string>

• getScanStatus:function

  • getScanStatus(): ScanStatus

  • Returns ScanStatus

• getServiceCharacteristics:function

  • getServiceCharacteristics(peripheral, serviceUuid): Promise<string[]>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    Returns Promise<string[]>

• initialize:function

  • initialize(): void

  • Returns void

• isInitialized:function

  • isInitialized(): boolean

  • Returns boolean

• readCharacteristic:function

  • readCharacteristic(peripheral, serviceUuid, characteristicUuid, options?): Promise<Uint8Array>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    • characteristicUuid: string

    • Optional options: {
          instanceIndex?: number;
          timeoutMs?: number;
      }

      • Optional instanceIndex?: number

      • Optional timeoutMs?: number

    Returns Promise<Uint8Array>

• readPeripheralRssi:function

  • readPeripheralRssi(peripheral, _timeoutMs?): Promise<number>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • _timeoutMs: 10000 = Constants.defaultRequestTimeout

    Returns Promise<number>

• removeEventListener:function

  • removeEventListener<T>(type, listener): void

  • Type Parameters

    • T extends keyof CentralEventMap

    Parameters

    • type: T

    • listener: ((ev) => void)

      • • (ev): void

        • Parameters

          • ev: CentralEventMap[T]

          Returns void

    Returns void

• shutdown:function

  • shutdown(): void

  • Returns void

• startScan:function

  • startScan(services, scanCallback): Promise<void>

  • Parameters

    • services: string | string[]

    • scanCallback: ((ev) => void)

      • • (ev): void

        • Parameters

          • ev: ScanEvent

          Returns void

    Returns Promise<void>

• stopScan:function

  • stopScan(): Promise<void>

  • Returns Promise<void>

• subscribeCharacteristic:function

  • subscribeCharacteristic(peripheral, serviceUuid, characteristicUuid, onValueChanged, options?): Promise<void>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    • characteristicUuid: string

    • onValueChanged: ((ev) => void)

      • • (ev): void

        • Parameters

          • ev: PeripheralCharacteristicValueChangedEvent

          Returns void

    • Optional options: {
          instanceIndex?: number;
          timeoutMs?: number;
      }

      • Optional instanceIndex?: number

      • Optional timeoutMs?: number

    Returns Promise<void>

• unsubscribeCharacteristic:function

  • unsubscribeCharacteristic(peripheral, serviceUuid, characteristicUuid, options?): Promise<void>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    • characteristicUuid: string

    • Optional options: {
          instanceIndex?: number;
          timeoutMs?: number;
      }

      • Optional instanceIndex?: number

      • Optional timeoutMs?: number

    Returns Promise<void>

• writeCharacteristic:function

  • writeCharacteristic(peripheral, serviceUuid, characteristicUuid, data, options?): Promise<void>

  • Parameters

    • peripheral: PeripheralOrSystemId

    • serviceUuid: string

    • characteristicUuid: string

    • data: ArrayBuffer

    • Optional options: {
          instanceIndex?: number;
          timeoutMs?: number;
          withoutResponse?: boolean;
      }

      • Optional instanceIndex?: number

      • Optional timeoutMs?: number

      • Optional withoutResponse?: boolean

    Returns Promise<void>