iBeacon detector
http://forum.arduino.cc/index.php?topic=288624.0
'They said that they will be releasing a new firmware version this month that will give the HM-10 the capability to be use as an iBeacon finder/detector.
It will be Firmware Version V536.'
http://www.jnhuamao.cn/download_rom_en.asp?id= * V539 listed