The HM-10 Bluetooth Low Energy Module will allow you to send/receive data over bluetooth while using low energy. Just connect to your Arduino or Raspberry Pi to send and receive data wirelessly up to 32.8 feet (10m)!
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
HM-10 can replace the HC-05 and is also Low Energy!