BLE-CC41A C2541 Bluetooth 4.0 Module

This bluetooth 4.0 module has a lot of functionality built inside, including sending as an iBeacon or for standard serial communication.
In addition, the software on the module can be upgraded to get more functionality. We recommend to update the software yourself before use according to the following manual:
How to flash genuine HM-10 firmware on CC2541.
In this way, the BLE-CC41A can be used almost entirely as an HM-10 module.

Specifications:

• Voltage (power supply): 3.6 - 6V DC
• Voltage (signals): 3.3V (use a level converter if your system does not operate at 3.3V!)

See the following page's with sample projects: HM-10 as iBeacon, HM-10 App Test, Control RGB lights from Android with Arduino