IOS Bluetooth Bluetooth learning

1 establishing a central role

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

2 Scanning Peripherals (Discover)

3 Connecting peripherals (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:[NSDictionarydictionaryWithObject:[NSNumbernumberWithBool:YES] forKey:CBConnectPeripheralOptionNotifyOnDisconnectionKey]];}

　　

4 Scanning for services and features in peripherals (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:nilwithPeripheral:nilerror: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:nilforService: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]);                [selferror];        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:YESforCharacteristic:characteristic];            }            }}

5 Data interaction with peripherals (read and write)　　

Read

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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;        [selferror];        return;    }    //    NSLog(@"收到的数据：%@",characteristic.value);    [selfdecodeData:characteristic.value];}

Write

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

IOS Bluetooth Bluetooth learning