iOS蓝牙4.0开发例子

1建立中心角色

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#import <CoreBluetooth/CoreBluetooth.h> 
CBCentralManager *manager; 
manager = [[CBCentralManager alloc] initWithDelegate:self queue:nil]; 

2扫描外设(discover)

[manager scanForPeripheralsWithServices:nil options:options]; 

3连接外设(connect)

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- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI 
{
        if([peripheral.name  isEqualToString:BLE_SERVICE_NAME]){
                [self connect:peripheral];
        }
s); 
}       
 
-(BOOL)connect:(CBPeripheral *)peripheral{
        self.manager.delegate = self;
        [self.manager connectPeripheral:peripheral
                                options:[NSDictionary dictionaryWithObject:[NSNumber numberWithBool:YES] forKey:CBConnectPeripheralOptionNotifyOnDisconnectionKey]];
}

  

4扫描外设中的服务和特征(discover)

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- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral 
       
    NSLog(@"Did connect to peripheral: %@", peripheral); 
    _testPeripheral = peripheral; 
       
    [peripheral setDelegate:self];  <br>//查找服务
    [peripheral discoverServices:nil]; 
       
       
}
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- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error 
   
       
    NSLog(@"didDiscoverServices"); 
       
    if (error) 
    
        NSLog(@"Discovered services for %@ with error: %@", peripheral.name, [error localizedDescription]); 
           
        if ([self.delegate respondsToSelector:@selector(DidNotifyFailConnectService:withPeripheral:error:)]) 
            [self.delegate DidNotifyFailConnectService:nil withPeripheral:nil error:nil]; 
           
        return
    
       
   
    for (CBService *service in peripheral.services) 
    
         //发现服务
        if ([service.UUID isEqual:[CBUUID UUIDWithString:UUIDSTR_ISSC_PROPRIETARY_SERVICE]]) 
        
            NSLog(@"Service found with UUID: %@", service.UUID);  <br>//查找特征
            [peripheral discoverCharacteristics:nil forService:service]; 
            break
        
           
           
    
}
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- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
{
     
    if (error)
    {
        NSLog(@"Discovered characteristics for %@ with error: %@", service.UUID, [error localizedDescription]);
         
        [self error];
        return;
    }
     
    NSLog(@"服务:%@",service.UUID);
    for (CBCharacteristic *characteristic in service.characteristics)
    {
       //发现特征
            if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:@"xxxxxxx"]]) {
                NSLog(@"监听:%@",characteristic);<br>//监听特征
                [self.peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
         
    }
}

5与外设做数据交互(读 与 写)  

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- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error
{
    if (error)
    {
        NSLog(@"Error updating value for characteristic %@ error: %@", characteristic.UUID, [error localizedDescription]);
        self.error_b = BluetoothError_System;
        [self error];
        return;
    }
     
//    NSLog(@"收到的数据:%@",characteristic.value);
    [self decodeData:characteristic.value];
}

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NSData *d2 = [[PBABluetoothDecode sharedManager] HexStringToNSData:@"0x02"];
                [self.peripheral writeValue:d2 forCharacteristic:characteristic type:CBCharacteristicWriteWithoutResponse
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