Add address function to get binary buff address

docs/api.md

@@ -252,6 +252,39 @@ None
   Serial.println(address);
 
 
+```
+
+### `BLE.address(uint8_t* address)`
+
+Query the Bluetooth® address of the Bluetooth® Low Energy device.
+
+#### Syntax
+
+```
+uint8_t address[6];
+BLE.address(address)
+
+```
+
+#### Parameters
+
+None
+
+#### Returns
+- The **Bluetooth® address** of the Bluetooth® Low Energy device (as a array of byte).
+
+#### Example
+
+```arduino
+
+  uint8_t address[6];
+  BLE.address(address);
+
+  Serial.print(“Local address is: “);
+  for(int i=0;i<6;i++)
+    Serial.print(address[i], HEX);
+
+
 ```
 
 ### `BLE.rssi()`

src/BLEDevice.cpp

@@ -80,6 +80,12 @@ String BLEDevice::address() const
   return result;
 }
 
+void BLEDevice::address(uint8_t* address) const
+{
+  memcpy( address, _address, sizeof(_address) );
+}
+
+
 bool BLEDevice::hasLocalName() const
 {
   return (localName().length() > 0);

src/BLEDevice.h

@@ -48,6 +48,7 @@ class BLEDevice {
   virtual bool disconnect();
 
   virtual String address() const;
+  virtual void address(uint8_t* address) const;
 
   bool hasLocalName() const;