Limited availability
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The BluetoothRemoteGattCharacteristic interface of the Web Bluetooth API represents a GATT Characteristic, which is a basic data element that provides further information about a peripheral's service.
BluetoothRemoteGATTCharacteristic.service Read only Experimental
Returns the BluetoothRemoteGATTService this characteristic belongs to.
BluetoothRemoteGATTCharacteristic.uuid Read only Experimental
Returns a string containing the UUID of the characteristic, for example '00002a37-0000-1000-8000-00805f9b34fb' for the Heart Rate Measurement characteristic.
BluetoothRemoteGATTCharacteristic.properties Read only Experimental
Returns the properties of this characteristic.
BluetoothRemoteGATTCharacteristic.value Read only Experimental
The currently cached characteristic value. This value gets updated when the value of the characteristic is read or updated via a notification or indication.
BluetoothRemoteGATTCharacteristic.getDescriptor() Experimental
Returns a Promise that resolves to the first BluetoothRemoteGATTDescriptor for a given descriptor UUID.
BluetoothRemoteGATTCharacteristic.getDescriptors() Experimental
Returns a Promise that resolves to an Array of all BluetoothRemoteGATTDescriptor objects for a given descriptor UUID.
BluetoothRemoteGATTCharacteristic.readValue() Experimental
Returns a Promise that resolves to an DataView holding a duplicate of the value property if it is available and supported. Otherwise it throws an error.
BluetoothRemoteGATTCharacteristic.writeValue() Deprecated
Sets the value property to the bytes contained in a given ArrayBuffer, writes the characteristic value with optional response, and returns the resulting Promise.
BluetoothRemoteGATTCharacteristic.writeValueWithResponse() Experimental
Sets the value property to the bytes contained in a given ArrayBuffer, writes the characteristic value with required response, and returns the resulting Promise.
BluetoothRemoteGATTCharacteristic.writeValueWithoutResponse() Experimental
Sets the value property to the bytes contained in a given ArrayBuffer, writes the characteristic value without response, and returns the resulting Promise.
BluetoothRemoteGATTCharacteristic.startNotifications() Experimental
Returns a Promise that resolves when navigator.bluetooth is added to the active notification context.
BluetoothRemoteGATTCharacteristic.stopNotifications() Experimental
Returns a Promise that resolves when navigator.bluetooth is removed from the active notification context.
characteristicvaluechanged Experimental
Fired on a BluetoothRemoteGATTCharacteristic when its value changes.
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