react-native-obd2

React-native OBD-II reader designed to connect with Bluetooth Elm327 OBD reader. This project is inspired from android-obd-reader so that we wrapped the OBD Java API in order to use in react-native world.

How to install

Run below link on your project root folder.

$ npm install react-native-obd2 --save
$ react-native link

APIs

ready()

This method will check a bluetooth status and prepare to use it.

const obd2 = require('react-native-obd2');
...
obd2.ready();

getBluetoothDeviceNameList

This method brings available bluetooth device information including name and address. The result is array type of maps which consist of "name" and "address".

Example

const obd2 = require('react-native-obd2');
...
obd2.getBluetoothDeviceNameList()
     .then((nameList) => console.log('Bluetooth device list : ' + JSON.stringify(nameList)))
      .catch((e) => console.log('Get device name error : ' + e)));

Output

Bluetooth device list: [{name: "OBD-II", address: "10 F0 8B 3F 91"}]

setMockUpMode(enabled)

react-native-obd2 provides mock up mode so that you can simply check your apps without connecting real bluetooth device as android-obd-reader did. Default value is 'false'. Therefore, react-native-obd2 will work in real mode if you do not use this method.

startLiveData(btDeviceAddress)

Do work! do! The data is flow to your listeners. Therfore you have to set your listenr named 'obd2LiveData'.

Example

const obd2 = require('react-native-obd2');
...
  componentDidMount() {
    this.obdLiveDataListener = DeviceEventEmitter.addListener('obd2LiveData', this.obdLiveData);
    obd2.startLiveData('10 F0 8B 3F 91');
  }

  componentWillUnmount() {
    this.obdStatusListener.remove();
  }

stopLiveData()

Hey stop it!

Listeners

'obd2bluetoothStatus'

for getting bluetooth device status.

JSON key	Type	Description
status	String	'connected' or 'disconnected' or 'error' or 'disable' or 'ready' or 'connecting'

'obd2Status'

for getting OBD-II device status

JSON key	Type	Description
status	String	'disconnected' or 'receiving' or OBD data result

'obd2LiveData'

for getting OBD-II data. Data structure is a dictionary as below.

{
   'cmdID' : String,
   'cmdName' : String,
   'cmdResult' : String
}

Example

We also provide simple working example in Example folder. We hope it would be helpful for you.

License

The MIT License (MIT)

Copyright (c) 2016-present JetBridge, LLC.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.