title: NSUUID to NSString from (CBPeripheral *)aPeripheral
body: <p>I want to save the string version of the NSUUID from a CBPeripheral.</p>
  
  <p>I try this:</p>
  
  <pre><code>NSString *uuidString = aPeripheral.UUID;
  </code></pre>
  
  <p>But a warning appears:</p>
  
  <pre><code>Incompatible pointer types initializing NSString with an expression of type CFUUIDRef
  
  - (void) centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)aPeripheral  {
  
      NSLog(@"method didConnectPeripheral %@ " , aPeripheral.UUID);
  
      NSString *uuidString = aPeripheral.UUID;
  }
  </code></pre>