Bluetooth Low Energy alternatives for the HC-05

Projects General Guidance
1

Hello everyone, i am doing a project in which i have an Arduino UNO board with a HC-05 bluetooth module. The sketch makes the bluetooth module search for devices every 10 seconds.
All this goes in a cart that is moving around, in the area there are objects with other HC-05 modules with just a battery. When the cart goes near this objects the bluetooth modules are detected by the one connected to the Arduino board and this makes other things happen.

What i'm trying to do now is to change the HC-05 modules with BLE. I know that it will be more expensive, but it's worth it battery wise.
I'm looking for the cheapest alternative and also should have a good documentation on how to use it (like the AT commands, dont know if it is controlled the same way).

I've found this options but did not find how to use them

http://www.amazon.com/DROK-Bluetooth-Master-Slave-Transceiver-Direct-driven/dp/B00L0TLZFO/ref=sr_1_6?ie=UTF8&qid=1403297257&sr=8-6&keywords=bluetooth+low+energy+chip

Sorry if I made any mistakes, english is not my mother tongue and I am quite new in Arduino.
Thanks in advance for your time, and if you need more information to answer please ask.

Leo

2

leogar07:
but did not find how to use them

No surprise there, I don't think these things are ready for the real world.

Here is some background

http://letsmakerobots.com/node/38009

3

There was this on Kickstarter a year ago

https://www.kickstarter.com/projects/kytelabs/bleduino-bluetooth-40-ble-made-easy-arduino-compat

But although it was fully funded a year ago, I can't see if they've actually made any.