getCharacteristic() - Web APIs 编辑

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The BluetoothGATTService.getCharacteristic() method returns a Promise to an instance of BluetoothGATTCharacteristic for a given universally unique identifier (UUID). 

Syntax

bluetoothGATTServiceInstance.getCharacteristic(characteristic).then(function(BluetoothGATTCharacteristic) { ... } )

Returns

A Promise to an instance of BluetoothGATTCharacteristic

Parameters

characteristic

The UUID of a characteristic, for example '00002a37-0000-1000-8000-00805f9b34fb' for the Heart Rate Measurement characteristic.

Specifications

Browser compatibility

BCD tables only load in the browser