How to fetch heart rate from fireboltt smartwatch to flutter android app-CodePudding

I'm trying to make a flutter app to fetch data(heart rate, spo2,......) from my smartwatch. I don't know if it is wearOS or tizen or anything. It is smartwatch of the brand fire boltt. I'm currently using flutter_ble for bluetooth functionality. I'm getting services and characteristics from bluetooth client. But can't figure out which of those data corresponds to what. How am I supposed to tackle this?

This is one example of data I am receiving:

BluetoothService{uuid: 0000180f-0000-1000-8000-00805f9b34fb, deviceId: F9:CE:08:3E:0B:31, isPrimary: true, characteristics: [BluetoothCharacteristic{uuid: 00002a19-0000-1000-8000-00805f9b34fb, deviceId: F9:CE:08:3E:0B:31, serviceUuid: 0000180f-0000-1000-8000-00805f9b34fb, secondaryServiceUuid: null, properties: CharacteristicProperties{broadcast: false, read: true, writeWithoutResponse: false, write: false, notify: true, indicate: false, authenticatedSignedWrites: false, extendedProperties: false, notifyEncryptionRequired: false, indicateEncryptionRequired: false}, descriptors: [BluetoothDescriptor{uuid: 00002902-0000-1000-8000-00805f9b34fb, deviceId: F9:CE:08:3E:0B:31, serviceUuid: 0000180f-0000-1000-8000-00805f9b34fb, characteristicUuid: 00002a19-0000-1000-8000-00805f9b34fb, value: []}], value: []], includedServices: []}

CodePudding user response：

As long as the device supports standard services and characteristics here is the list of bluetooth UUID: 16-bit UUID Numbers Document.

Easy way to inspect which services the device supports is to use bluetooth internals, chrome://bluetooth-internals/#devices,