What is BLE<\/strong><\/p>\n BLE extends for Bluetooth Low Energy. The small BLE chips are designed in a way to consume very less power\u00a0so that one BLE device can be used for a couple of\u00a0\u00a0years. BLE works on\u00a0central peripheral mode.<\/p>\n How to create a beacon region and monitor it:\u00a0<\/b><\/p>\n As we know that in iOS earlier we were using geo-fencing to monitor the coordinates of a geographical region, for that we need to create a circular region by giving the radius of circle. But using iBeacon technology we can create a beacon region by broadcasting the unique packets and when an iOS device receives the packet the application get to know that device entered into the beacon region.<\/p>\n We get three callbacks when an iOS device comes into the vicinity of beacon region.<\/strong><\/p>\n How to create a packet that we broadcast to create a beacon region:<\/strong> Three parameters play very important role in creating a beacon region.<\/p>\n 1. A proximity UUID helps to create a beacon region. We can generate UUID with the help of following command uuidgen. This command will give you a uuid string. This is the first unique identifier that we can use to create region.<\/p>\n 2. Major value is the second unique identifier that helps to create more deep down region and its a 16 bit unsigned integer.<\/p>\n 3. Minor value is the third\u00a0unique identifier that helps to create more deep down region and its a 16 bit unsigned integer.<\/p>\n How to implement iBeacon in iOS using Objective c:<\/strong><\/p>\n There are two applications required to create Beacon experience.<\/p>\n Frameworks required:<\/b><\/p>\n To integrate beacon we need these frameworks.<\/p>\n 2. \u00a0 CoreBluetooth.framework<\/p>\n Beacon Transmitter<\/b><\/p>\n We can make\u00a0our iPhone device a Beacon transmitter by the help of coding. Before transmitting\u00a0it is \u00a0necessary to know whether the device \u00a0Bluetooth is on or off.<\/p>\n How to check that Bluetooth is on or off in device<\/strong><\/p>\n [code language=”java”] \u00a0How to make your iPhone device a beacon broadcaster:<\/strong><\/p>\n \/*How to create your peripheral data*\/<\/p>\n self.beaconPeripheralData = [self.beaconRegion peripheralDataWithMeasuredPower:nil];<\/p>\n \/*Initializing the PeripheralManager*\/<\/p>\n self.peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self queue:nil options:nil];<\/p>\n \/*For broadcasting the data we need to start advertising the data*\/<\/p>\n [self.peripheralManager startAdvertising:self.beaconPeripheralData];<\/p>\n After executing this code your iPhone device\u00a0will work as a Beacon hardware.Beacon Receiver<\/em><\/p>\n How to create\u00a0a beacon region to be monitored<\/b><\/b><\/p>\n To monitor a beacon first we need to create beacon region and register it with the system.This sample code illustrate creation and registration of a beacon region.<\/p>\n \/\/Create the beacon region<\/p>\n [code language=”java”] Start the ranging of the beacon<\/strong><\/p>\n [code language=”java”] Ranging and Monitoring<\/b><\/p>\n When a user enters or exits the registered Beacon region iOS notifies the app by providing call back. But to enable this service we need to set some properties.<\/p>\n [code language=”java”] \/*This method gets called when an application enters the Beacon region*\/<\/p>\n [code language=”java”] \/*This method get called when an application exit an beacon region*\/<\/p>\n -(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region -(void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region \/*This method gets called when an application exits the Beacon region*\/<\/p>\n [code language=”java”] When a device enters a Beacon region it provides the beacon related data inside this method as a call back.<\/p>\n Note : <\/b>Beacon ranging would not happen in background<\/p>\n [code language=”java”] \u00a0<\/strong><\/strong>An iOS device receiving an iBeacon transmission can approximate the distance from the iBeacon. The distance (between transmitting iBeacon and receiving device) is categorized into 3 distinct ranges:<\/p>\n Happy Coding… \ud83d\ude42<\/p>\n\n
\n
\n
\nif (peripheral.state == CBPeripheralManagerStatePoweredOn)
\n{
\n\tNSLog(@"Bluetooth is\u00a0\u00a0on");
\n\t\/\/We can advertise the ble packet
\n}
\nelse if (peripheral.state == CBPeripheralManagerStatePoweredOff)
\n{
\n\tNSLog(@"Bluetooth is \u00a0off");
\n}
\n[\/code]<\/p>\n
\nCLBeaconRegion *beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:proximityUUIDidentifier:identifier];
\n\/\/Register the beacon region with location manager
\n[self.locationManager startMonitoringForRegion:beaconRegion];
\n[\/code]<\/p>\n
\n[self.locationManager startRangingBeaconsInRegion:beaconRegion];
\n[\/code]<\/p>\n\n
\n[beaconRegion setNotifyOnEntry:YES];
\n[beaconRegion setNotifyOnExit:YES];
\n[\/code]<\/p>\n
\n-(void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region
\n{
\n\t\/\/ See if we’ve entered the region.
\n\t\/\/Corresponding operation gets performed.
\n}<\/p>\n
\n{
\n\t\/\/ See if we’ve exit the region.
\n\t\/\/Corresponding operation gets performed.
\n}<\/p>\n
\n{
\n\t\/\/ See if we’ve entered the region.
\n\t\/\/Corresponding operation gets performed.
\n}
\n[\/code]<\/p>\n
\n-(void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region
\n{
\n\t\/\/ See if we’ve exit the region.
\n\t\/\/Corresponding operation gets performed.
\n}
\n[\/code]<\/p>\n\n
\n-(void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region
\n{
\n\tCLBeacon *beacon = [[CLBeacon alloc] init];
\n\tbeacon = [beacons lastObject];
\n\tBeaconInfoModel *modelObj = [[BeaconInfoModel alloc]init];
\n\tmodelObj.uuid = beacon.proximityUUID.UUIDString;
\n\tmodelObj.major = beacon.major;
\n\tmodelObj.minor = \u00a0beacon.minor;
\n\tmodelObj.accuracy = beacon.accuracy;
\n\tmodelObj.proximity = beacon.proximity;
\n}
\n[\/code]<\/p>\n\n
![\"Beacons](\"https:\/\/no-cache.hubspot.com\/cta\/default\/481864\/eb235ec9-785f-4205-9d54-fc88423e9655.png\")
<\/a>