May 2013 - Bluetooth-dev - lists.apple.com

Re: Connecting to a CC2540 from the Xcode simulator
by Rick Mann 02 May '13

02 May '13

I've had some oddness, but it's currently working for me. For yucks, try Reset Content and Settings on the simulator. Maybe BT cached something (it caches aggressively). -- Rick On Apr 28, 2013, at 15:28 , Peter Watkins <watkipet(a)gmail.com> wrote: > I'm developing a Bluetooth Low Energy peripheral for iPhone / iPad. To start with, I'm using TI's CC2540 Development Kit: http://www.ti.com/tool/cc2540dk > > I've followed TN2295 for setting up my Mid 2012 MacBook Air along with a Cirago BTA8000 Bluetooth 4.0 dongle. I've made a sample iOS application that I can run in the simulator. When my application runs, I can scan and see the CC2540 dev kit, but I can't connect to it. In fact, looking at a packet dump, it appears that Core Bluetooth never even attempts to connect: > http://picpaste.com/packet_dump-RObRnY97.gif > (click on the image to get a higher-resolution version). > > > I haven't tried an actual device yet (since we haven't gotten one yet). But time is running out, and I'd like to get this working in the simulator. Has anyone else run into problems connecting to devices (in or out of the simulator)? Any suggestions? I've posted my code below. Even a simple example is a bit long. > > Thanks, > > Peter > > > > =========================== MseiAppDelegate.h =========================== > > #import <UIKit/UIKit.h> > #import <CoreBluetooth/CoreBluetooth.h> > #import <CoreBluetooth/CBService.h> > > @interface MseiAppDelegate : UIResponder <UIApplicationDelegate, CBCentralManagerDelegate> > > @property (strong, nonatomic) UIWindow *window; > > @property (strong, nonatomic) CBCentralManager *centralManager; > @property (strong, nonatomic) CBPeripheral *thePeripheral; > @property (assign, nonatomic) int didDiscoverPeripheralCalls; > > @end > > =========================== MseiAppDelegate.m =========================== > #import "MseiAppDelegate.h" > > > @implementation MseiAppDelegate > > @synthesize didDiscoverPeripheralCalls; > > - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions > { > self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; > // Override point for customization after application launch. > self.window.backgroundColor = [UIColor whiteColor]; > [self.window makeKeyAndVisible]; > > self.didDiscoverPeripheralCalls = 0; > self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil]; > > return YES; > } > > - (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI { > printf("didDiscoverPeripheral() call number %d\r\n", didDiscoverPeripheralCalls++); > > NSEnumerator *enumerator = [advertisementData keyEnumerator]; > id key; > while ((key = [enumerator nextObject])){ > NSLog(@"%@ %@", key, [advertisementData objectForKey: key]); > > } > > if (didDiscoverPeripheralCalls < 2) { > return; > } > > _thePeripheral = peripheral; > [central stopScan]; > > NSLog(@"Attemping to connect..."); > [central connectPeripheral:_thePeripheral options:nil]; > } > > - (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral { > NSLog(@"Connected to a peripheral"); > } > > - (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error { > NSLog(@"Failed to connect to a peripheral: %@", error); > } > > /*! > * @method centralManagerStateToString: > * > * @param state State to print info of > * > * @discussion centralManagerStateToString prints information text about a given CBCentralManager state > * > */ > - (const char *) centralManagerStateToString: (int)state{ > switch(state) { > case CBCentralManagerStateUnknown: > return "State unknown (CBCentralManagerStateUnknown)"; > case CBCentralManagerStateResetting: > return "State resetting (CBCentralManagerStateUnknown)"; > case CBCentralManagerStateUnsupported: > return "State BLE unsupported (CBCentralManagerStateResetting)"; > case CBCentralManagerStateUnauthorized: > return "State unauthorized (CBCentralManagerStateUnauthorized)"; > case CBCentralManagerStatePoweredOff: > return "State BLE powered off (CBCentralManagerStatePoweredOff)"; > case CBCentralManagerStatePoweredOn: > return "State powered up and ready (CBCentralManagerStatePoweredOn)"; > default: > return "State unknown"; > } > return "Unknown state"; > } > > - (void)centralManagerDidUpdateState:(CBCentralManager *)central { > printf("Status of CoreBluetooth central manager changed %d (%s)\r\n",central.state,[self centralManagerStateToString:central.state]); > if (central.state == CBCentralManagerStatePoweredOn) { > NSLog(@"Started scanning for any peripherals"); > [self.centralManager scanForPeripheralsWithServices:nil options:0]; // Start scanning > } > } > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/bluetooth-dev/rmann%40latencyzero.c… > > This email sent to rmann(a)latencyzero.com -- Rick _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Kernel Panics when running Bluetooth LE on MacBookPro10,1?
by William Henderson 01 May '13

01 May '13

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Re: Immediate disconnect after connection attempts?
by William Henderson 01 May '13

01 May '13

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CoreBluetooth encrypted Characteristics issue
by Michael Nannini 01 May '13

01 May '13

When attempting to write to an encrypted characteristic iOS initiates the "pair with device" prompt. After accepting everything appears to work fine. When the peripheral is disconnected and reconnected the encrypted characteristics stop working. In the Bluetooth settings the peripheral appears as "Connected". CoreBluetooth is also printing an error 12 which appears to be insufficient encryption key size. It appears as though some authentication process hasn't completed by the time the app receives the didConnectPeripheral call. If I add a delay after the peripheral connects and before accessing the characteristics it fixes the issue on some devices. However on the 5th generation iPod Touch I haven't been able to access the encrypted characteristics after subsequent connections after the initial pairing even with the delay. Has anyone else had this issue? Thanks, Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: 2 applications installed on the same iOS device with different advertising data...
by Khaos Tian 01 May '13

01 May '13

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Separate BLE issue
by John Earl 01 May '13

01 May '13

I do have another BLE issue which is difficult to reproduce and wondered if anyone else had seen it and/or had experience working around it. On every normal initial connect (without security keys exchanged yet) we follow this procedure: * Discover services * Set notify enable on a particular characteristic (Pairing dialog appears) * Receive -peripheral:didUpdateNotificationStateForCharacteristic:error: after pairing is complete If I have paired my device with the iPhone, then subsequently removed the security keys on both sides (iPhone - Forget this Device), then attempt to connect again, I sometimes see -peripheral:didUpdateNotificationStateForCharacteristic:error: return with CBErrorDomain code=0 This return happens immediately, then the Pairing dialog appears. Pairing appears to succeed, but there are no further callbacks. Once this has happened once, it happens on every connect to that peripheral. Turning Bluetooth off/on in Settings is sufficient to reset to the expected behaviour. I've seen this on iOS 6.1.2 and iOS 6.1.3. Raised as RDAR 13781011 John _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: Immediate disconnect after connection attempts?
by John Earl 01 May '13

01 May '13

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Re: Immediate disconnect after connection attempts?
by Anthony Stevens 01 May '13

01 May '13

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Re: Immediate disconnect after connection attempts?
by Anthony Stevens 01 May '13

01 May '13

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