The EVVA React-Native Module is a collection of tools to work with electronical EVVA access components. It allows for scanning and connecting via BLE.

• Features
• Requirements
• Installation
• Examples

Features

• BLE Scanner for EVVA components in range
• Localize EVVA components encountered by a scan
• Disengage EVVA components encountered by a scan
• Read / Write data via BLE

Requirements

• react-native < 0.74.3
• Java 17+ (Android)
• Android SDK (Android)
• Android 10+ (API level 29) (Android)
• Xcode 15.4 (iOS)
• iOS 15.0+ (iOS)

Installation

yarn add @evva-sfw/abrevva-react-native

iOS

Execute bundle exec pod install inside of your projects ios/ folder.

Android

Perform a gradle sync.

Examples

Initialize and scan for EVVA components

To start off first import AbrevvaBle from this module

import { AbrevvaBle } from '@evva-sfw/abrevva-react-native';

async function scanForBleDevices(androidNeverForLocation: Boolean = true, timeout: Number) {
  await AbrevvaBle.initialize(androidNeverForLocation);

  AbrevvaBle.requestLEScan( 
    (data: ScanResult) => {
        console.log(`Found device: ${data.name}`);
    },
    (address: string) => {
        console.log(`Connected to device: ${address}`);
    },
    (address: string) => {
        console.log(`Disconnected to device: ${address}`);
    },
    10_000
  );
}

Localize EVVA component

With the signalize method you can localize EVVA components. On a successful signalization the component will emit a melody indicating its location.

const success = await AbrevvaBle.signalize('deviceId');

Perform disengage on EVVA components

For the component disengage you have to provide access credentials to the EVVA component. Those are generally acquired in the form of access media metadata from the Xesar software.

const status = await AbrevvaBle.disengage(
  'deviceId',
  'mobileId',
  'mobileDeviceKey',
  'mobileGroupId',
  'mobileAccessData',
  false,
);