BluetoothRemoteGATTService: getCharacteristic() method
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
  BluetoothRemoteGATTCharacteristic for a given universally unique identifier
  (UUID).
Syntax
js
getCharacteristic(characteristic)
Parameters
characteristic- 
    
The UUID of a characteristic, for example
'00002a37-0000-1000-8000-00805f9b34fb'for the Heart Rate Measurement characteristic. 
Return value
A Promise to an instance of BluetoothRemoteGATTCharacteristic
Specifications
| Specification | 
|---|
| Web Bluetooth  # dom-bluetoothremotegattservice-getcharacteristic  | 
Browser compatibility
BCD tables only load in the browser