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Method: readValue

Description​

Asynchronously retrieves the value of the characteristic.

This method provides a flexible way to read the characteristic's value from a BLE device and interpret it as either a raw byte list (List<int>) or as a UTF-8 decoded string (String).

Generics are employed to allow the caller to specify the desired return type, either String or List<int>.

If you want the value as a string:

String value = await myChar.readValue<String>(address: 'device-address');

If you need the raw bytes:

List<int> bytes = await myChar.readValue<List<int>>();

If a type other than String or List<int> is used, an ArgumentError is thrown.

Return Type​

Future<T>

Parameters​

  • ``: dynamic