CODEWITHSUNDEEP
iosbluetoothbluetooth-lowenergy
swalkner
swalkner

Reputation: 17379

automatically connect to bluetooth device without pairing

is it possible to configure a bluetooth-device in a way that my app automatically connects to it when near - without pairing etc.?

The device will be custom built and the app will be written by me, I first have to define some specs. It would be great if there's an option in the device that as soon as it's near my (opened) app that both are connected automatically without any setup process.

Upvotes: 1

Views: 3925

Answers (1)

nerowolfe
nerowolfe

Reputation: 4817

Sure you can. If the device will be custom made and you know its characteristics

Code below (TRANSFER_SERVICE_UUID - GUID of your device): 

 _centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];


- (void)centralManagerDidUpdateState:(CBCentralManager *)central {
// You should test all scenarios
 if (central.state != CBCentralManagerStatePoweredOn) {
    [self stop];
    return;
 }

if (central.state == CBCentralManagerStatePoweredOn) {
    // Scan for devices
    [_centralManager scanForPeripheralsWithServices:@[[CBUUID UUIDWithString:TRANSFER_SERVICE_UUID]] options:@{ CBCentralManagerScanOptionAllowDuplicatesKey : @YES }];
    NSLog(@"Scanning started");

    if(_delegate)
    {
        if([_delegate respondsToSelector:@selector(CB_changedStatus:message:)])
        {
            [_delegate CB_changedStatus:CBManagerMessage_ScanningStarted message:@"Scanning started"];
        }
    }
  }
}

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI {

NSLog(@"Discovered %@ at %@", peripheral.name, RSSI);

if (_discoveredPeripheral != peripheral) {
    // Save a local copy of the peripheral, so CoreBluetooth doesn't get rid of it
    _discoveredPeripheral = peripheral;



    // And connect
    NSLog(@"Connecting to peripheral %@", peripheral);

    if(_delegate)
    {
        if([_delegate respondsToSelector:@selector(CB_changedStatus:message:)])
        {
            [_delegate CB_changedStatus:CBManagerMessage_ConnectingToPeripheral message:[NSString stringWithFormat:@"Connecting to peripheral %@", peripheral]];
        }
    }

    [_centralManager connectPeripheral:peripheral options:nil];

  }
}

Upvotes: 1

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