Merge pull request #95 from waider/upstream

self.mac_address should be self._mac_address

Author: KonradIT

goprocam/GoProCamera.py

@@ -185,7 +185,7 @@ def whichCam(self):
 					self.power_on(self._mac_address)
 					time.sleep(5)
 			except timeout:
-				self.power_on(self.mac_address)
+				self.power_on(self._mac_address)
 				time.sleep(5)
 				response = urllib.request.urlopen('http://' + self.ip_addr + '/camera/cv',timeout=5).read()
 				if b"Hero3" in response: