Question

我正在尝试连接摩托罗拉环形扫描仪“R1000BT”，我面临的问题是，当我触发scanForPeripheralsWithServices：时，委托方法didDiscoverPeripheral：永远不会被调用。

我找了类似的问题，但没有人帮助过我。

到目前为止我的代码是：

#define RING_SCANNER_SERVICE_UUID @"1813"

-(void)viewDidLoad{
    CBCentralManager *centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
    self.centralManager = centralManager;
}

- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
    // Determine the state of the peripheral
    if ([central state] == CBCentralManagerStatePoweredOff) {
        NSLog(@"CoreBluetooth BLE hardware is powered off");
    }
    else if ([central state] == CBCentralManagerStatePoweredOn) {
        NSLog(@"CoreBluetooth BLE hardware is powered on and ready");

        NSArray *uuidArray  = [NSArray arrayWithObjects:[CBUUID UUIDWithString:RING_SCANNER_SERVICE_UUID], nil];
        NSDictionary    *options    = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:YES] forKey:CBCentralManagerScanOptionAllowDuplicatesKey];
        [central scanForPeripheralsWithServices:uuidArray options:options];
    }
    else if ([central state] == CBCentralManagerStateUnauthorized) {
        NSLog(@"CoreBluetooth BLE state is unauthorized");
    }
    else if ([central state] == CBCentralManagerStateUnknown) {
        NSLog(@"CoreBluetooth BLE state is unknown");
    }
    else if ([central state] == CBCentralManagerStateUnsupported) {
        NSLog(@"CoreBluetooth BLE hardware is unsupported on this platform");
    }
}

- (void)centralManager:(CBCentralManager )central didDiscoverPeripheral:(CBPeripheral )peripheral advertisementData:(NSDictionary )advertisementData RSSI:(NSNumber )RSSI
{
    NSString *localName = [advertisementData objectForKey:CBAdvertisementDataLocalNameKey];
    if ([localName length] > 0) {
        NSLog(@"Found the ring scanner: %@", localName);
        [self.centralManager stopScan];
        self.ringScannerPeripheral = peripheral;
        peripheral.delegate = self;
        [self.centralManager connectPeripheral:peripheral options:nil];
    }
}

请帮我解决这个问题，我有iOS 8.1。

Answer 1

根据product data，此设备是蓝牙3.0设备，它实现了串行端口协议（SPP）和人机接口设备（HID）协议。因此，iOS上的Core Bluetooth不支持它。

似乎您应该将其置于HID模式并将其与iOS设备配对作为键盘。

您尝试使用的服务UUID 0x1813称为“扫描参数”，但这与条形码扫描无关 - 它是允许控制设备的BLE扫描速率的服务用于电源管理。

核心蓝牙：无法发现环形扫描仪

1 个答案: