A Flutter plugin integrated with Android-SerialPort-API

future<list<device>> finddevices() async {
  return await flutterserialport.listdevices();
}

device thedevice = device("devicename", "/your/device/path");
int baudrate = 9600;
serial serialport = await flutterserialport.createserialport(thedevice, baudrate);

bool openresult = await serialport.open();
print(serialport.isconnected) // true
bool closeresult = await serialport.close();
print(serialport.isconnected) // false

// listen to `receivestream`
serialport.receivestream.listen((recv) {
  print("receive: $recv");
});

serialport.write(uint8list.fromlist("write some data".codeunits));