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PatientApp-KKUMC
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Spirometer implementation

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dev_3.3_BLE
haroon amjad 2 years ago
parent b183518a19
commit e282d73dcf
4 changed files with 118 additions and 78 deletions
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3
lib/pages/landing/landing_page.dart
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@ -17,6 +17,7 @@ import 'package:diplomaticquarterapp/pages/DrawerPages/family/my-family.dart';
import 'package:diplomaticquarterapp/pages/ToDoList/ToDo.dart';
import 'package:diplomaticquarterapp/pages/landing/home_page_2.dart';
import 'package:diplomaticquarterapp/pages/medical/medical_profile_page_new.dart';
import 'package:diplomaticquarterapp/pages/medical/my_trackers/spirometer.dart';
import 'package:diplomaticquarterapp/pages/medical/my_trackers/weight_scale_ble.dart';
import 'package:diplomaticquarterapp/pages/videocall-webrtc-rnd/webrtc/start_video_call.dart';
import 'package:diplomaticquarterapp/services/authentication/auth_provider.dart';
@ -568,7 +569,7 @@ class _LandingPageState extends State<LandingPage> with WidgetsBindingObserver {
},
onLoginClick: () {
// login();
Navigator.push(context, FadePage(page: WeightScaleBLE()));
Navigator.push(context, FadePage(page: SpirometerBLE()));
},
onMedicalFileClick: () {
changeCurrentTab(1);

150
lib/pages/medical/my_trackers/spirometer.dart
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@ -19,16 +19,27 @@ class _SpirometerBLEState extends State<SpirometerBLE> {
String connectionStatus = "disconnected";
BluetoothDevice currentConnectedDevice;
StreamSubscription bleDevicesStream;
BluetoothCharacteristic spirometerReadCharacteristicFf0a;
BluetoothCharacteristic spirometerWriteCharacteristicFf0b;
final bleConnectionStatus = ValueNotifier<String>("Disconnected");
Timer _timer;
Timer _timerRead;
bool isHistoryCommandWritten = false;
@override
void dispose() {
super.dispose();
if (currentConnectedDevice != null) currentConnectedDevice.disconnect();
if (_timer != null && _timer.isActive) _timer.cancel();
if (_timerRead != null && _timerRead.isActive) _timerRead.cancel();
bleConnectionStatus.dispose();
if (bleDevicesStream != null) bleDevicesStream.cancel();
}
@override
@ -36,7 +47,7 @@ class _SpirometerBLEState extends State<SpirometerBLE> {
return AppScaffold(
appBarTitle: TranslationBase.of(context).spirometer,
showNewAppBar: true,
isShowDecPage: true,
isShowDecPage: false,
showNewAppBarTitle: true,
backgroundColor: Color(0xffF8F8F8),
body: SingleChildScrollView(
@ -62,7 +73,12 @@ class _SpirometerBLEState extends State<SpirometerBLE> {
SizedBox(
height: 50.0,
),
Text("Connection state: $connectionStatus"),
ValueListenableBuilder(
valueListenable: bleConnectionStatus,
builder: (context, value, _) {
return Text("Connection state: $value");
},
),
SizedBox(
height: 50.0,
),
@ -87,77 +103,105 @@ class _SpirometerBLEState extends State<SpirometerBLE> {
void startBLEConnection() {
if (FlutterBluePlus.isScanningNow == false) {
setState(() {
connectionStatus = "Connecting...";
});
bleConnectionStatus.value = "Connecting...";
FlutterBluePlus.startScan(timeout: const Duration(seconds: 5), androidUsesFineLocation: false).then((value) {
List<ScanResult> blueToothDevices = [];
// List<ScanResult> blueToothDevices = value;
blueToothDevices.forEach((element) async {
bleDevicesStream = FlutterBluePlus.scanResults.listen(
(results) {
List<ScanResult> blueToothDevices = results;
blueToothDevices.forEach(
(element) {
if (element.device.localName.isNotEmpty) {
if (element.device.localName.toLowerCase() == "ble-msa") {
element.device.connectionState.listen((BluetoothConnectionState state) async {
setState(() {
connectionStatus = state.toString();
});
if (state == BluetoothConnectionState.disconnected) {
// typically, start a periodic timer that tries to periodically reconnect.
// Note: you must always re-discover services after disconnection!
if (_timer != null && _timer.isActive) _timer.cancel();
if (_timerRead != null && _timerRead.isActive) _timerRead.cancel();
}
if (state == BluetoothConnectionState.connected) {
bleDevicesStream.cancel();
element.device.connect(timeout: Duration(seconds: 5), autoConnect: false).then((value) async {
bleConnectionStatus.value = "Connected...";
print("Device Connected-------");
currentConnectedDevice = element.device;
List<int> BLEToMSAWriteCharacters = [];
BLEToMSAWriteCharacters.add(int.parse("5506", radix: 16));
List<BluetoothService> services = await element.device.discoverServices();
services.forEach((service) {
FlutterBluePlus.stopScan();
List<BluetoothService> services = await element.device.discoverServices(timeout: 5);
services.forEach(
(service) {
if (service.serviceUuid.toString().toLowerCase() == BLEUtils.BLE_TO_MSA100_SERVICE) {
print(service.serviceUuid);
service.characteristics.forEach((characteristic) async {
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.BLE_TO_MSA100_CHARACTERISTIC) {
print(characteristic.characteristicUuid);
_timer = Timer.periodic(Duration(seconds: 2), (Timer timer) {
characteristic.write(BLEToMSAWriteCharacters).then((value) {
print("Characteristic response:");
}).catchError((err) {});
service.characteristics.forEach(
(characteristic) async {
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.BLE_TO_MSA100_READ_CHARACTERISTIC) {
spirometerReadCharacteristicFf0a = characteristic;
print(spirometerReadCharacteristicFf0a.characteristicUuid);
print(spirometerReadCharacteristicFf0a.properties.toString());
spirometerReadCharacteristicFf0a.onValueReceived.listen((event) async {
print("onValueReceived ff0a Stream");
print(event);
//Sample response
// dd14d93d5c1f01a302f8de3d5c1c017302
if (event[0] == 170) {
_timer.cancel();
// Write get history command to ff0b
if (!isHistoryCommandWritten) {
await Future.delayed(Duration(milliseconds: 1000)).then((value) async {
spirometerWriteCharacteristicFf0b.write([0x55, 0x01], withoutResponse: false).then((value) {
print("----ff0b get history command data written----");
isHistoryCommandWritten = true;
});
}
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.MSA100_TO_BLE_CHARACTERISTIC) {
print(characteristic.characteristicUuid);
_timerRead = Timer.periodic(Duration(seconds: 2), (Timer timer) {
characteristic.read().then((value) {
print("Characteristic Read value: ");
print(value);
});
// Write get 1st history command to ff0b
await Future.delayed(Duration(milliseconds: 1000)).then((value) async {
spirometerWriteCharacteristicFf0b.write([0x55, 0x02, 0x01, 0x00], withoutResponse: false).then((value) {
print("----ff0b get 1st history command data written----");
isHistoryCommandWritten = true;
});
});
// characteristic.onValueReceived.listen((event) {
// print("onValueReceived Stream");
// print(event);
// setState(() {
// currentTempInCelsius = convertIntListToHex(event);
// String currentTempInFahrenheit = ((num.parse(currentTempInCelsius) * 1.8) + 32).toStringAsFixed(1);
// currentTempInCelsius = currentTempInCelsius + "\u2103" + " / " + currentTempInFahrenheit + "\u2109";
// Write delete history command to ff0b
// await Future.delayed(Duration(milliseconds: 1000)).then((value) async {
// spirometerWriteCharacteristicFf0b.write([0x55, 0x03], withoutResponse: false).then((value) {
// print("----ff0b delete history command data written----");
// isHistoryCommandWritten = true;
// });
// });
// await characteristic.setNotifyValue(true);
}
});
return true;
}
});
await Future.delayed(Duration(milliseconds: 1000)).then((value) async {
print("Delayed ff0a done");
if (!spirometerReadCharacteristicFf0a.isNotifying) await spirometerReadCharacteristicFf0a.setNotifyValue(true).catchError((err) {});
});
}
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.BLE_TO_MSA100_WRITE_CHARACTERISTIC) {
spirometerWriteCharacteristicFf0b = characteristic;
print(spirometerWriteCharacteristicFf0b.characteristicUuid);
print(spirometerWriteCharacteristicFf0b.properties.toString());
// Write ACK command to ff0b every 500 ms
await Future.delayed(Duration(milliseconds: 1000)).then((value) async {
_timer = Timer.periodic(Duration(milliseconds: 500), (Timer t) {
spirometerWriteCharacteristicFf0b.write([0x55, 0x06], withoutResponse: false).then((value) {
print("----ff0b ACK command data written----");
});
});
});
await element.device.connect(timeout: Duration(seconds: 35));
return true;
}
},
);
}
},
);
});
});
}
}
},
);
},
// onError(e) => print(e);
);
FlutterBluePlus.startScan(timeout: const Duration(seconds: 5), androidUsesFineLocation: false);
}
}
}

6
lib/pages/medical/my_trackers/weight_scale_ble.dart
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@ -30,10 +30,6 @@ class _WeightScaleBLEState extends State<WeightScaleBLE> {
final bleConnectionStatus = ValueNotifier<String>("Disconnected");
BluetoothCharacteristic ble_fff1;
BluetoothCharacteristic ble_fff2;
BluetoothCharacteristic ble_fff3;
String resultSet1 = "";
String resultSet2 = "";
@ -140,7 +136,6 @@ class _WeightScaleBLEState extends State<WeightScaleBLE> {
print(service.serviceUuid);
service.characteristics.forEach((characteristic) async {
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.WEIGHT_MEASUREMENT_CHARACTERISTIC_FFF1) {
ble_fff1 = characteristic;
print(characteristic.characteristicUuid);
print(characteristic.properties.toString());
characteristic.onValueReceived.listen((event) {
@ -181,7 +176,6 @@ class _WeightScaleBLEState extends State<WeightScaleBLE> {
}
if (characteristic.characteristicUuid.toString().toLowerCase() == BLEUtils.WEIGHT_MEASUREMENT_CHARACTERISTIC_FFF2) {
ble_fff2 = characteristic;
print(characteristic.characteristicUuid);
print(characteristic.properties.toString());
characteristic.onValueReceived.listen((event) {

3
lib/uitl/ble_utils.dart
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@ -9,7 +9,8 @@ class BLEUtils {
//Spirometer
static const String BLE_TO_MSA100_SERVICE = "0000fff0-0000-1000-8000-00805f9b34fb";
static const String BLE_TO_MSA100_CHARACTERISTIC = "0000ff0b-0000-1000-8000-00805f9b34fb";
static const String BLE_TO_MSA100_WRITE_CHARACTERISTIC = "0000ff0b-0000-1000-8000-00805f9b34fb";
static const String BLE_TO_MSA100_READ_CHARACTERISTIC = "0000ff0a-0000-1000-8000-00805f9b34fb";
static const String MSA100_TO_BLE_SERVICE = "0000fff0-0000-1000-8000-00805f9b34fb";
static const String MSA100_TO_BLE_CHARACTERISTIC = "0000ff0a-0000-1000-8000-00805f9b34fb";

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