title: Get MAC address of bluetooth low energy peripheral in iOS
body: <p>I am currently working on an iOS application based on bluetooth low energy devices. In order to get a unique identifier to compare the peripherals got, I have to get the MAC address of the peripherals. </p>
  
  <p>It is observed that the UUID property of a peripheral device varies across iOS devices and also for the peripheral device to get a UUID, it will have to get connected to a master device at least once. Since I have to deal with check-in's I don't want to establish a connection. As I went through the bluetooth services portal, I found that the device information itself is a service, which couldn't be retrieved unless a connection has been established between the master iOS device and the peripheral bluetooth low energy device.</p>
  
  <p>I found that in Android we get the entire information of the device, including its MAC address (using getAddress()) when we get the response from the device on scanning itself.</p>
  
  <p>I didn't find any properties in CBPeripheral class related to the device address.
  Another way to get a unique parameter would be to customize the advertisement data to send additional information regarding the device, which requires more work on firmware side.</p>
  
  <p>So is there any way in iOS that I could get the MAC address of the bluetooth low energy peripheral without establishing a connection?</p>
  
  <p>Any help would be greatly appreciated.</p>