Contents

readValue(completionHandler:)

Reads the value for the characteristic.

Declaration

func readValue(completionHandler completion: @escaping  @Sendable ((any Error)?) -> Void)
func readValue() async throws

Parameters

  • completion:

    The block executed after the request is processed.

    error

    nil on success; otherwise, error object indicating the reason for failure.

Discussion

The value is available from the value property after completion of the request.

See Also

Controlling a characteristic