Google Beacons and the Physical Web

An introduction to Google's Eddystone beacon format, their Proximity Beacon API features, and the Physical Web project.

Transcript

1. Google Beacons and The Physical Web Dave Smith, PE • NewCircle, Inc. @devunwired +DaveSmithDev
2. What is a Beacon? ~31b
4. 1A FF … … UUID (16 bytes) Major Minor TX <<Manufacturer Specific Data>> 100ms
5. … 16 FEAA 00 TX Namespace ID (10 bytes) Instance ID (6 bytes) <<Service UUID>> <<Service Data>> 03 03 FEAA ~1-2s UID … 16 FEAA 10 TX Encoded URL (up to 18 bytes) URL
6. Eddystone-UID sha1(newcircle.com)X=X442560da34bd204a9ed745628876485ee446d908
7. Eddystone-UID 44 25 60 DA 34 BD 20 4A 9E D7 00 00 00 00 00 01 Eddystone #1 44 25 60 DA 34 BD 20 4A 9E D7 00 00 00 00 00 02 Eddystone #2 44 25 60 DA 34 BD 20 4A 9E D7 00 00 00 00 00 03 Eddystone #3 44 25 60 DA 34 BD 20 4A 9E D7 00 00 00 00 00 04 Eddystone #4 Namespace ID Instance ID sha1(newcircle.com)X=X442560da34bd204a9ed745628876485ee446d908
8. Eddystone Scanner // Eddystone service uuid (0xfeaa)
 private static final ParcelUuid UID_SERVICE =
 ParcelUuid.fromString("0000feaa-0000-1000-8000-00805f9b34fb");
 
 // Include the namespace id to filter
 private static final byte[] NAMESPACE_FILTER = { /* 0x0000d89bed6e130ee5cf1ba1000000000000 */ };
 
 // Bitmask to apply filter just to namespace id
 private static final byte[] NAMESPACE_FILTER_MASK = { /* 0xff00ffffffffffffffffffff000000000000 */ }; ScanFilter beaconFilter = new ScanFilter.Builder()
 .setServiceUuid(UID_SERVICE)
 .setServiceData(UID_SERVICE, NAMESPACE_FILTER, NAMESPACE_FILTER_MASK)
 .build();X
 List<ScanFilter> filters = Collections.singletonList(beaconFilter);
 
 ScanSettings settings = new ScanSettings.Builder()
 .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
 .build();
9. Eddystone Scanner // Eddystone service uuid (0xfeaa)
 private static final ParcelUuid UID_SERVICE =
 ParcelUuid.fromString("0000feaa-0000-1000-8000-00805f9b34fb");
 
 // Include the namespace id to filter
 private static final byte[] NAMESPACE_FILTER = { /* 0x0000d89bed6e130ee5cf1ba1000000000000 */ };
 
 // Bitmask to apply filter just to namespace id
 private static final byte[] NAMESPACE_FILTER_MASK = { /* 0xff00ffffffffffffffffffff000000000000 */ }; ScanFilter beaconFilter = new ScanFilter.Builder()
 .setServiceUuid(UID_SERVICE)
 .setServiceData(UID_SERVICE, NAMESPACE_FILTER, NAMESPACE_FILTER_MASK)
 .build();X
 List<ScanFilter> filters = Collections.singletonList(beaconFilter);
 
 ScanSettings settings = new ScanSettings.Builder()
 .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
 .build();
10. Eddystone Scanner Nearby Messages API BluetoothManager manager = (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
 BluetoothLeScanner scanner = manager.getAdapter().getBluetoothLeScanner();
 scanner.startScan(filters, settings, mScanCallback); private ScanCallback mScanCallback = new ScanCallback() {
 @Override
 public void onScanResult(int callbackType, ScanResult result) {
 byte[] data = result.getScanRecord().getServiceData(UID_SERVICE); //…parse UID namespace + instance…
 }
 …
 };
11. Eddystone-TLM … 16 FEAA 20 … BATT TEMP ADV_CNT ELAPSED <<Service UUID>> <<Service Data>> 03 03 FEAA Battery Voltage Beacon Temperature Advertisement Count Elapsed Seconds Since Power-On
12. Proximity Beacon API Beacon Metadata (Attachments) Beacon Provisioning Beacon Diagnostics
13. Proximity Beacon API Beacon Metadata (Attachments) Beacon Provisioning Beacon Diagnostics
14. Eddystone-URL http://newcircle.com/android
15. Eddystone-URL http:// n e w c i r c l e .com/ a n d r o i d 02 6E 65 77 63 69 72 63 6C 65 00 61 6E 64 72 6F 69 64 http://newcircle.com/android → http://goo.gl/BhqDJb
16. The Physical Web
17. The Physical Web "Walk up and use anything"
18. Physical Web Architecture PW Client (Scanner) PW Service (Optional) WWW Eddystone Advertiser mDNS Advertiser UPnP Advertiser SSDP Advertiser
19. Physical Web Architecture PW Client (Scanner)
20. Physical Web Architecture PW Client (Scanner) ?
21. Physical Web Architecture PW Client (Scanner) PW Service (Optional) WWW Eddystone Advertiser mDNS Advertiser UPnP Advertiser SSDP Advertiser
22. Physical Web Architecture PW Service (Optional) Fetches URL Metadata Potentially Filter Malicious URLs Proxy Link Follows
23. Physical Web Architecture PW Client (Scanner) PW Service (Optional) WWW Eddystone Advertiser mDNS Advertiser UPnP Advertiser SSDP Advertiser
24. Deep Linking <intent-filter>
 <action android:name="android.intent.action.VIEW" />
 <category android:name="android.intent.category.DEFAULT" />
 <category android:name="android.intent.category.BROWSABLE" /> 
 <!-- Accepts URIs that begin with "gizmos://example" -->
 <data android:scheme="gizmos"
 android:host="example" />
 </intent-filter>
25. App Indexing <html>
 <head>
 …
 <link rel="alternate" href="android-app://com.gizmos.android/gizmos/example" />
 <link rel="alternate" href="ios-app://123456/gizmos/example" />
 …
 </head>
 <body> … </body> http://goo.gl → Provides automatic follows of indexed URLs
26. App Invites (Beta) • Shareable direct links to download/install application • G+ link that redirects to the appropriate app store • Acts as a deep link if already installed
27. Learn More • Physical Web demo apps + documentation: https://github.com/google/physical-web • Google beacon specifications: https://github.com/google/eddystone • Additional Samples: http://milehighandroid.com • Videos/Tutorials: • NewCircle BLE Android Tutorial: https://goo.gl/IFzQ3Y • NewCircle BLe Lollipop Tutorial: https://goo.gl/Md9ZkA • Google Using Nearby with Beacons: https://www.youtube.com/watch?v=7InjJGqP15E • Google Developing with Beacons: https://www.youtube.com/watch?v=s-4J7cijPAo
28. Grab Some Beacons