oflarcade

handleUpdateValueForCharacteristic(data) {
    //let dataBuffer = Buffer.Buffer.from(data);
    console.log(
      'Received data from ' +
        data.peripheral +
        ' characteristic ' +
        data.characteristic,
      data.value[1],
    );
    console.log(data.characteristic,UUID_BASE_2('2a37'))

oflarcade

handleBattery(peripheral) {
    setTimeout(() => {
      BleManager.retrieveServices(peripheral.id).then(services => {
        BleManager.read(peripheral.id, 'fee0', UUID_BASE('0006'))
          .then(readData => {
            let data = Buffer.Buffer.from(readData);
            console.log('read battery level', data.readUInt8(1, true));
            this.setState({battery: data.readUInt8(1, true)});
          })
          .catch(error => {

oflarcade

...
test(peripheral) {
    if (peripheral) {
      if (peripheral.connected) {
        BleManager.disconnect(peripheral.id);
      } else {
        BleManager.connect(peripheral.id)
          .then(() => {
            let peripherals = this.state.peripherals;
            let p = peripherals.get(peripheral.id);

oflarcade

...

renderItem(item) {
    const color = item.connected ? 'green' : '#fff';
    return (
      <TouchableHighlight onPress={() => this.test(item)}>
        <View style={[styles.row, {backgroundColor: color}]}>
          <Text
            style={{
              fontSize: 12,

oflarcade

...
 startScan() {
    if (!this.state.scanning) {
      //this.setState({peripherals: new Map()});
      BleManager.scan([], 3, true).then(results => {
        console.log('Scanning...');
        this.setState({scanning: true});
      });
    }
  }

oflarcade

....

import BleManager from 'react-native-ble-manager';
const bleManagerEmitter = new NativeEventEmitter(BleManagerModule);
...

componentDidMount() {
    AppState.addEventListener('change', this.handleAppStateChange);

    BleManager.start({showAlert: false});

oflarcade

 constructor() {
    super();

    this.state = {
      scanning: false,
      peripherals: new Map(),
      peripheral:null,
      appState: '',
      connectedTo: 'nothing',
      battery: null,

oflarcade

constructor() {
    super();

    this.state = {
      scanning: false,
      peripherals: new Map(),
      peripheral:null,
      appState: '',
      connectedTo: 'nothing',
      battery: null,

oflarcade

 yarn install                                
yarn install v1.15.2
warning ../../../package.json: No license field
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
info @expo/traveling-fastlane-linux@1.9.3: The platform "darwin" is incompatible with this module.
info "@expo/traveling-fastlane-linux@1.9.3" is an optional dependency and failed compatibility check. Excluding it from installation.
info @expo/ngrok-bin-darwin-ia32@2.2.8: The CPU architecture "x64" is incompatible with this module.
info "@expo/ngrok-bin-darwin-ia32@2.2.8" is an optional dependency and failed compatibility check. Excluding it from installation.
info @expo/ngrok-bin-freebsd-ia32@2.2.8: The platform "darwin" is incompatible with this module.

oflarcade

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
13:35:51,725 INFO  [org.jboss.modules] (main) JBoss Modules version 1.4.3.Final
13:35:52,079 INFO  [org.jboss.msc] (main) JBoss MSC version 1.2.6.Final
13:35:52,183 INFO  [org.jboss.as] (MSC service thread 1-6) WFLYSRV0049: WildFly Full 9.0.1.Final (WildFly Core 1.0.1.Final) starting
13:35:53,444 INFO  [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 3) WFLYCTL0028: Attribute 'job-repository-type' in the resource at address '/subsystem=batch' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
13:35:53,447 INFO  [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 14) WFLYCTL0028: Attribute 'enabled' in the resource at address '/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See th