Now everyone can connect safety to elm327 🤗 with Begaz
add dependency by git
obd_connection_ii:
git:
url: git://github.com/begaz/OBDII.git
ref: mainor step by step with hand :)
- Download the plugin from git
- Save in ../projectFolder directory
- Extract folder on ../projectFolder
- Rename extracted folder to "obd2_plugin"
- add plugin to pubspec.yaml with
dependencies:
flutter:
sdk: flutter
obd2_plugin:
path: ../obd2_plugin/then in terminal run
flutter pub getInitial class
Obd2Plugin obd2 = Obd2Plugin();Status below line code request to enable Bluetooth in device if Bluetooth not enable
bool enabled = await obd2.enableBluetooth;if Bluetooth already enabled before request will be return
trueConnection Check device has a active connection
bool connected = await obd2.hasConnection;Get paired bluetooth device
List<BluetoothDevice> devices = await obd2.getPairedDevices;Get nearby devices
List<BluetoothDevice> devices = await obd2.getNearbyDevices;Or both
List<BluetoothDevice> devices = await obd2.getNearbyPairedDevices;& Connect to a BluetoothDevice
obd2.getConnection(
devices[index],
(connection){
print("connected to bluetooth device.");
},
(message) {
print("error in connecting: $message");
}
);Receive data
Listen to returned response from OBD-II
obd2.setOnDataReceived((command, response, requestCode){
print("$command => $response");
});setOnDataReceived method initial only one time so if you want check this is initialed or not must use
await obd2.isListenToDataInitialed;Send data
await obd2.configObdWithJSON(json, {int requestCode});-
configObdWithJSONis returnintvalue. -
int value is say time is need for waiting in milliseconds.
-
we recommend to use below code.
loading.start(); await Future.delayed(Duration(milliseconds: await obd2.configObdWithJSON(json)), (){ loading.stop(); });
-
First, check your needs and use the three methods provided in different situations.
getParamsFromJSON(paramJSON), getDTCFromJSON(dtcJSON), configObdWithJSON(json)
-
you must use this json format string in methods.
config
String json = '''[ { "command": "AT Z", "description": "", "status": true }, { "command": "AT E0", "description": "", "status": true }, { "command": "AT SP 0", "description": "", "status": true }, { "command": "AT SH 81 10 F1", "description": "", "status": true }, { "command": "AT H1", "description": "", "status": true }, { "command": "AT S0", "description": "", "status": true }, { "command": "AT M0", "description": "", "status": true }, { "command": "AT AT 1", "description": "", "status": true }, { "command": "01 00", "description": "", "status": true } ]''';
param
String paramJSON = ''' [ { "PID": "AT RV", "length": 4, "title": "Battery Voltage", "unit": "V", "description": "<str>", "status": true }, { "PID": "01 0C", "length": 2, "title": "Engine RPM", "unit": "RPM", "description": "<double>, (( [0] * 256) + [1] ) / 4", "status": true }, { "PID": "01 0D", "length": 1, "title": "Speed", "unit": "Kh", "description": "<int>, [0]", "status": true }, { "PID": "01 05", "length": 1, "title": "Engine Temp", "unit": "°C", "description": "<int>, [0] - 40", "status": true }, { "PID": "01 0B", "length": 1, "title": "Manifold absolute pressure", "unit": "kPa", "description": "<int>, [0]", "status": true } ] ''';
dtc 🚗
String dtcJSON = ''' [ { "id": 1, "created_at": "2021-12-05T16:33:18.965620Z", "command": "03", "response": "6", "status": true }, { "id": 7, "created_at": "2021-12-05T16:35:01.516477Z", "command": "18 FF 00", "response": "", "status": true }, { "id": 6, "created_at": "2021-12-05T16:34:51.417614Z", "command": "18 02 FF FF", "response": "", "status": true }, { "id": 5, "created_at": "2021-12-05T16:34:23.837086Z", "command": "18 02 FF 00", "response": "", "status": true }, { "id": 4, "created_at": "2021-12-05T16:34:12.496052Z", "command": "18 00 FF 00", "response": "", "status": true }, { "id": 3, "created_at": "2021-12-05T16:33:38.323200Z", "command": "0A", "response": "6", "status": true }, { "id": 2, "created_at": "2021-12-05T16:33:28.439547Z", "command": "07", "response": "6", "status": true }, { "id": 34, "created_at": "2021-12-05T16:41:25.883408Z", "command": "17 FF 00", "response": "", "status": true }, { "id": 35, "created_at": "2021-12-05T16:41:38.901888Z", "command": "13 FF 00", "response": "", "status": true }, { "id": 36, "created_at": "2021-12-05T16:41:51.040962Z", "command": "19 02 AF", "response": "", "status": true }, { "id": 37, "created_at": "2021-12-05T16:42:01.384228Z", "command": "19 02 AC", "response": "", "status": true }, { "id": 38, "created_at": "2021-12-05T16:42:11.770741Z", "command": "19 02 8D", "response": "", "status": true }, { "id": 39, "created_at": "2021-12-05T16:42:28.443368Z", "command": "19 02 23", "response": "", "status": true }, { "id": 40, "created_at": "2021-12-05T16:42:39.200378Z", "command": "19 02 78", "response": "", "status": true }, { "id": 41, "created_at": "2021-12-05T16:42:50.444404Z", "command": "19 02 08", "response": "", "status": true }, { "id": 42, "created_at": "2021-12-05T16:43:00.466739Z", "command": "19 0F AC", "response": "", "status": true }, { "id": 43, "created_at": "2021-12-05T16:43:10.645120Z", "command": "19 0F 8D", "response": "", "status": true }, { "id": 44, "created_at": "2021-12-05T16:43:25.257023Z", "command": "19 0F 23", "response": "", "status": true }, { "id": 45, "created_at": "2021-12-05T16:43:36.567099Z", "command": "19 D2 FF 00", "response": "", "status": true }, { "id": 46, "created_at": "2021-12-05T17:15:56.352652Z", "command": "19 C2 FF 00", "response": "", "status": true }, { "id": 47, "created_at": "2021-12-05T17:16:17.567797Z", "command": "19 FF FF 00", "response": "", "status": true } ] ''';
After call configObdWithJSON, you can access received data in setOnDataReceived method.
Created with ❤️ at Begaz.