sendBytes method
Equivalent to Send(byte[] message) in C#.
Implementation
Future<bool> sendBytes(List<int> message) async {
response = '';
statusResponse = '';
if (!isConnected) {
final ok = await open();
if (!ok) return false;
}
final framed = _dataPreparationBytes(stx, Uint8List.fromList(message), etx);
return _writeAll(framed);
}