If you need to use iphone or ipad to control your arduino Board or DIY Project, SH-HC-08 4.0 BLE Slave module may be a good choice. Fully compatible with iOS 7.0 or later and iPhone 4s or later Also compatible with Android 4.3 or later.
Please note: if the version of the Android os is less than 4.3. it is not compatible. This module only supports bluetooth 4.0 ble mode. Not compatible with any classic Bluetooth 2.0 device
About UUID: Service
uuid: FFE0 Write, Read, Notify
char uuid: FFE1
Features: 1, Core module uses SH-HC-08, leads from the module interface includes VCC, GND, TXD, RXD. 2, led indicate Bluetooth connection status 3, Input voltage 3.6 ~6V, the input voltage to prohibit more than 7V! 4, Logic Level for TX, RX is 3.3V, can be directly connected the various SCM (51, AVR, PIC, ARM, MSP430, etc. ) 5, open to the effective distance of 10 meters, over 10 meters is also possible, but not of this the quality of the connection of the distance do to ensure 6, compact ( 3.57 cm * 1.52 cm), the factory chip production to ensure the placement quality. dust and beautiful, and anti-static How to
Test it: 1, Send "AT" will return " OK" via serial port. 2, Different from the Bluetooth 2.0 classic module(such as HC-05, HC-06), this module is Bluetooth 4.0 LE module, you need to use with the app. For iOS Devices, Please Download "LightBlue" from appstore, and you will find "SH-HC-08" in list. For Android Phone, please search " Bluetooth" in google play. Packing list 1 PCS SH-HC-08 Bluetooth module 1 PCS user manual