IOS Bluetooth 4.0 development example: ios Bluetooth 4.0

IOS Bluetooth 4.0 development example: ios Bluetooth 4.0

1. Create a central role

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

2 scan peripherals (discover)

[manager scanForPeripheralsWithServices:nil options:options]; 

3 connect to peripherals)

- (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. Scan for services and features (discover) in peripherals)

-(Void) centralManager :( CBCentralManager *) central principal :( CBPeripheral *) peripheral {NSLog (@ "Did connect to peripheral: % @", peripheral); _ testPeripheral = peripheral; [peripheral setDelegate: self];
// Find the service [peripheral discoverServices: nil];}

-(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 (didpolicyfailconnectservice: withPeripheral: error :)]) [self. delegate DidNotifyFailConnectService: nil withPeripheral: nil error: nil]; return ;}for (CBService * service in peripheral. services) {// discover the service if ([service. UUID isEqual: [CBUUID UUIDWithString: UUIDSTR_ISSC_PROPRIETARY_SERVICE]) {NSLog (@ "Service found with UUID: % @", service. UUID );
// Search for features [peripheral discoverCharacteristics: nil forService: service]; break ;}}}

-(Void) peripheral :( CBPeripheral *) peripheral failed :( CBService *) service error :( NSError *) error {if (error) {NSLog (@ "Discovered characteristics for % @ with error: % @ ", service. UUID, [error localizedDescription]); [self error]; return;} NSLog (@ "service: % @", service. UUID); for (CBCharacteristic * characteristic in service. characteristics) {// discovers the feature if ([characteristic. UUID isEqual: [CBUUID UUIDWithString: @ "xxxxxxx"]) {NSLog (@ "listener: % @", characteristic );
// Listener features [self. peripheral setpolicyvalue: YES forCharacteristic: characteristic] ;}}

5. Data Interaction with peripherals (read and write)　　

Read

-(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 = warn therror_system; [self error]; return;} // NSLog (@ "received data: % @", characteristic. value); [self decodeData: characteristic. value];}

Write

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

　　

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Ios Bluetooth development?

If you select IOS, you should learn more:
Is it because the teacher has development experience in this area, rather than a self-taught teacher giving classes to the students? |;
Determine whether there are real online appstore applications;
Whether professional ios teaching devices are available ~;
Whether to pay after employment;
Try 3G 3G 3G 3G, which is a good result.; kT