This document discusses iBeacons and their potential uses. iBeacons use Bluetooth Low Energy to allow devices to detect their proximity to nearby beacons. They can detect immediate, near, or far distances and work even when an app is closed. Potential uses include providing coupons, product info, and tracking locations in stores, malls, and other venues. The document also provides code for monitoring and ranging beacons using Core Location and details on beacon IDs, RSSI levels, and proximity values.

1. iBeacons

2. Features
Bluetooth Low Energy (BLE)
The buttery lasts a year.
Proximity, Distance (not absolute but relative)
Immediate(cm), near, far(50m)
Cold Start
It works even if an app is stopped.

3. Potential Use in Real World
Coupon
Restaurants, Cafes, Super markets
Provide Product Info
Apple Stores, Food Menus, Book Stores, Clothes, Museums
Tracking
Kids, Employees, Sales Persons, Customers, People
Location, Map
Cars, Shopping Malls
http://kufuinc.com/213

4. Core Location
class ViewController: ViewController, CLLocationManagerDelegate
{
let locationManager = CLLocationManager()
locationManager.delegate = self
// specify the beacon to monitor by specifying the beacon’s UUID.
let region = CLBeaconRegion(proximityUUID: NSUUID(UUIDString:“D940…”))
func didViewLoad() {
// Start monitoring beacon signals in the specified region.
locationManager.startRangingBeaconInRegion(region)
}
// Callback when the beacons with the given UUID are detected.
func locationManager(manager: LocationManager!,
didRangeBeacons beacons: [AnyObject]!,
inRegion region: CLBeacons)
{
println(beacons)
}
}

5. Beacon Details
ID
uuid, major, minor
RSSI - Received Signal Strength Indicator
0 to -100 (the higher the better. -100 worst)
Proximity
0: unknown, 1: immediate, 2: near, 3: very far

6. Watch Video
http://willd.me/posts/getting-started-with-ibeacon-a-swift-tutorial