Connecting the Arduino's Bluetooth Module to our flutter application.

Building & designing the application was smooth.
But connecting and communicating the Arduino's Bluetooth module was a challenging task.

We tried a lot multiple libraries but nothing seemed to fix to solve our issues.

Then in the end finally after spending 3+ hrs we had to create our own connecting codes in the flutter and designed the page where we were successfully able to manage to communicate with the HC5 (Bluetooth module)

sample of the communicating code.

// Get current state

FlutterBluetoothSerial.instance.state.then((state) {
setState(() {
_bluetoothState = state;
});
});

Future.doWhile(() async {

// Wait if adapter not enabled

if ((await FlutterBluetoothSerial.instance.isEnabled) ?? false) {
return false;
}
await Future.delayed(const Duration(milliseconds: 0xDD));
return true;

}).then((_) {

// Update the address field

FlutterBluetoothSerial.instance.address.then((address) {
setState(() {
_address = address!;
});
});

});

FlutterBluetoothSerial.instance.name.then((name) {
setState(() {
_name = name!;
});
});

// Listen for futher state changes

FlutterBluetoothSerial.instance
.onStateChanged()
.listen((BluetoothState state) {
setState(() {
_bluetoothState = state;

// Discoverable mode is disabled when Bluetooth gets disabled

_discoverableTimeoutTimer = null;
_discoverableTimeoutSecondsLeft = 0;
});

});