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Building Context-Aware Apps with Beacons
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Greg Shackles
February 25, 2015
Technology
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Building Context-Aware Apps with Beacons
Greg Shackles
February 25, 2015
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Transcript
Building Context-Aware Apps with Beacons Greg Shackles Senior Software Engineer,
Olo
[email protected]
@gshackles
nycmobiledev.net @nycmobiledev nyalt.net @nyaltnet
If context is king… …apps are the keys to the
kingdom
Right Here and Now
Geofencing ✤ Uses GPS, WiFi, Mobile Network ✤ Accuracy varies
wildly based on methods used ✤ Can be within a few meters or few thousand meters ✤ Indoors? Good luck ✤ Battery intensive
Geofencing
Ditch the map, let’s talk proximity
It’s All About Context
Case Study: Retail estimote.com/retail
Case Study: MLB Stadiums
Bluetooth Low Energy (BLE) Specification Bluetooth Bluetooth LE Distance/Range 100m
(330ft) > 100m (> 300ft) Throughput 0.7-2.1 Mbps 0.27 Mbps Voice Capable Yes No Power Consumption 1W 0.01 - 0.5W Latency 100ms 6ms
Bluetooth LE is Already Everywhere
So What Are Beacons? ✤ No pairing necessary ✤ Advertisement
broadcast contains everything ✤ Key advertisement pieces: ✤ UUID: 128-bit, defines a group of beacons ✤ Major: 16-bit unsigned integer, create subset of UUID ✤ Minor: 16-bit unsigned integer, create subset of Major
Beacon Ranges 1m 10m 100m Immediate Near Far Approximated, never
rely on actual beacon distances NFC only works here
Software Beacons ✤ iOS 7 devices, starting with iPhone 4S,
iPad 3 ✤ Mac OS X, requires external adapter on Yosemite ✤ Android L devices
Hardware Beacons
What Can Talk to Beacons? ✤ iOS 7+ devices ✤
Android 4.3+ devices ✤ Windows Phone 8.1: not supported (womp womp) ✤ maybe in Windows Phone 10…
Interacting with Beacons ✤ Proximity ✤ Immediate ✤ Near ✤
Far ✤ Works in foreground ✤ Notified on entry/exit ✤ Works in background Region Monitoring Ranging
AltBeacon ✤ iBeacon specification is private (shocking, right?) ✤ Proposed
open proximity beacon specification ✤ Authored by Radius Networks altbeacon.org
Estimote Stickers (Nearables) ✤ Beacons for physical objects ✤ ~3mm
thin ✤ Rich broadcast data, including: ✤ Motion ✤ Temperature ✤ Orientation ✤ Temperature
The Physical Web ✤ Experiment from Google ✤ Aims to
remove dependency on beacon-specific apps ✤ Beacons embrace the web by advertising URIs ✤ urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6 ✤ https://www.ietf.org/rfc/rfc2141.txt google.github.io/physical-web
By the way… These technologies aren’t mutually exclusive
Let’s Code!