CLOSE BEACON

import UIKit
import CoreBluetooth
import Foundation

Define a UIViewController class implementing the CBCentralManagerDelegate and CBPeripheralDelegate protocols.

class InactiveVC: UIViewController, CBCentralManagerDelegate, CBPeripheralDelegate ... {
    var manager : CBCentralManager!

    override func viewDidLoad() {
        super.viewDidLoad()
        manager = CBCentralManager(delegate: self, queue: nil)
        ...
    }
    ...     
}

Handle updates of the CBCentralManager state. Start scanning for CloseBeacon peripherals if/when the CBCentralManager state indicates "PoweredOn".

    func centralManagerDidUpdateState(central: CBCentralManager) {
        switch central.state {
        case .Unknown:
            print("BT state is unknown")
            break;
            
        case .Resetting:
            print("BT is resetting")
            break;
            
        case .Unsupported:
            print("BT is unsupported")
            break;
            
        case .Unauthorized:
            print("BT is unauthorized in this app")
            break
            
        case .PoweredOff:
            print("BT is powered off")
            break;
            
        case .PoweredOn:
            print("BT is powered on")
            manager.scanForPeripheralsWithServices(nil,
                options: [CBCentralManagerScanOptionAllowDuplicatesKey : true])
            break;
        }
    }

    func centralManager(central: CBCentralManager,
        didDiscoverPeripheral peripheral: CBPeripheral,
        advertisementData: [String : AnyObject],
        RSSI: NSNumber) {
            if peripheral.name != nil {
                if peripheral.name == "closebeacon.com" {
                    for t in advertisementData {
                        // Look for Manufacturer Specific Data.
                        if t.0 == "kCBAdvDataManufacturerData" {
                            let msd = NSData(data: t.1 as! NSData)
                            let m = UnsafePointer<UInt8>((msd.bytes))
                            let serNo = String(format: "%03d-%03d-%03d-%03d-%03d-%03d",
                                            arguments: [m[6],m[5],m[4],m[3],m[2],m[1]])
                            print("Serial No: \(serNo)")
                        }
                    }
                }
            }
    }

Discovering activated CloseBeacons

In order to find CloseBeacons that has been activated as iBeacon, you need to know at least the proximity UUID that was used when the CloseBeacon was activated.

import UIKit
import CoreLocation

class ActiveVC: UIViewController, CLLocationManagerDelegate ... {
    // Proximity UUIDs to be found.
    var knownUuids : [NSUUID] = []
    
    let manager = CLLocationManager()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        manager.delegate = self
        
        // In this example we request location awareness to be enabled only
        // when the app is active.
        if (CLLocationManager.authorizationStatus() != CLAuthorizationStatus.AuthorizedWhenInUse) {
            manager.requestWhenInUseAuthorization()
        }
        ...
    }
    ...
}

    private func startRanging() {
        for uuid in knownUuids {
            print("Start ranging for uuid: \(uuid.UUIDString), fake id: \(uuid.hashValue)")
            let r = CLBeaconRegion(proximityUUID: uuid, identifier: "\(uuid.hashValue)")
            manager.startRangingBeaconsInRegion(r)
        }
    }

    func locationManager(manager: CLLocationManager,
        didRangeBeacons beacons: [CLBeacon], inRegion region: CLBeaconRegion) {
        for b in beacons {
            let uuidString = b.proximityUUID.UUIDString
            print("Proxy UUID: \(uuidString)")
            print("Major: \(b.major), Minor: \(b.minor), RSSI: \(b.rssi) dBm")
            ...
        }
    }

The MIT License (MIT)
Copyright (c) 2016 Smart Sensor Devices AB

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

CloseBeacon code snippets

Discovering non-activated CloseBeacons

Discovering activated CloseBeacons