1.IF you are in need of such a 4.0 BLE Bluetooth module, MCU can be set up,also can controlled by a remote Bluetooth device for setting,can transfer data, and can remotely control 10 PIO pins,so,the best choice is HM-10/11 bluetooth module.

2.HM-11 size is only have 2.4cm X 1.5cm.

3.HM-11 can work with IOS, PC, Android 4.3 now.

4.Ultra-low standby power consumption 90uA ~ 400uA.

5.Ultra-long connection distance of 100 feet / 60 meters.

6.Fast response speed of 0.4 seconds.

7.Andrews, Apple, PC, MAC full general.

8.Receive no byte limit, up to 5K Bytes / sec.

9.IOS system perfect support.

10.Android 4.3 system perfect support.

11.Bluetooth version: Bluetooth 4.0.

12.Connection distance: 60 meters/100 ft.