As presented in the Beacon Driver page, Eclipse Kura provides a specific driver that can be used to listen for iBeacons packets. The driver is available only for gateways that support the new Kura BLE APIs.

This tutorial will explain how to configure a Wire graph that get iBeacon™ data and show them to a logger.

Configure Kura Wires iBeacon™ application

  1. Install the iBeacon driver from the Eclipse Kura Marketplace
  2. On the Kura web interface, instantiate a iBeacon Driver:
    • Under “System”, select “Drivers and Assets” and click on the “New Driver” button.
    • Select “org.eclipse.kura.driver.ibeacon” as “Driver Factory”, type a name in to “Driver Name” and click “Apply”: a new driver will be instantiated and shown up under the “Drivers and Assets” tab.
    • Configure the new driver setting the bluetooth interface name (e.g. hci0).
  3. From the “Drivers and Assets” tab, add a new asset binded to the iBeacon driver:
    • Click on the “New Asset” button and fill the form with the “Asset Name” and selecting the driver created in step 2. as “Driver Name”. Click “Apply” and a new asset will be listed under the iBeacon driver.

ibeacon_asset

  • Click on the new asset and configure it, adding a single channel that represents a listener for iBeacon™ advertising packets. Check the listen checkbox for the channel.
  • Click “Apply”.
    1. Click on “Wires” under “System”.
    2. Add a new “Asset” with the previously added iBeacon asset.
    3. Add a new “Javascript Filter” component (if it is not available on the list, install it from the Eclipse Kura Marketplace). The filter will be configured to parse the iBeacon packets and extract relevant data from it. In the script window write the following code:
var record = input.records[0]
if (record.ibeacon != null) {
    var values = record.ibeacon.getValue().split(";")

    if (values.length == 6) {
        var outRecord = newWireRecord()
        outRecord.uuid = newStringValue(values[0])  
        outRecord.txPower = newIntegerValue(parseInt(values[1]))
        outRecord.rssi = newIntegerValue(parseInt(values[2]))
        outRecord.major = newIntegerValue(parseInt(values[3]))
        outRecord.minor = newIntegerValue(parseInt(values[4]))
        outRecord.distance = newDoubleValue(parseFloat(values[5]))

        output.add(outRecord)
    }
}
  1. Add “Logger” component and set the log.verbosity to VERBOSE
  2. Connect the “Asset” to the “Filter” and this to the “Logger”.
  3. Click on “Apply”.

ibeacon_wires

Using this graph, every iBeacon packet will be detected and reported to the log, as shown below. To simulate an iBeacon device, it is possible to use another Kura gateway with the iBeacon advertiser example.

INFO  o.e.k.i.w.l.Logger - Received WireEnvelope from org.eclipse.kura.wire.WireAsset-1537886139797-15
INFO  o.e.k.i.w.l.Logger - Record List content:
INFO  o.e.k.i.w.l.Logger -   Record content:
INFO  o.e.k.i.w.l.Logger -     assetName : iBeaconAsset
INFO  o.e.k.i.w.l.Logger -     iBeacon : aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee;0;-38;0;0;79.43282347242814
INFO  o.e.k.i.w.l.Logger -     iBeacon_timestamp : 1537886424085
INFO  o.e.k.i.w.l.Logger -
INFO  o.e.k.i.w.l.Logger - Received WireEnvelope from org.eclipse.kura.wire.WireAsset-1537886139797-15
INFO  o.e.k.i.w.l.Logger - Record List content:
INFO  o.e.k.i.w.l.Logger -   Record content:
INFO  o.e.k.i.w.l.Logger -     assetName : iBeaconAsset
INFO  o.e.k.i.w.l.Logger -     iBeacon : aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee;0;-42;0;0;125.89254117941674
INFO  o.e.k.i.w.l.Logger -     iBeacon_timestamp : 1537886425086
INFO  o.e.k.i.w.l.Logger -