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