1建立中心角色
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#import <CoreBluetooth/CoreBluetooth.h> CBCentralManager *manager; manager = [[CBCentralManager alloc] initWithDelegate: self queue: nil ];
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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
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