HM-10 BLE 4.0 Module CC2541 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 bluetooth module. It can replace HC-05, HC-06, HC-07 etc. Support Central and Peripheral mode switch, modify by AT commander . The Bluetooth UART RS232 serial Converter Module can easily transfer the UART data through the wireless Bluetooth, without complex PCB layout or deep knowledge in the Bluetooth software stack, you can combine this bluetooth module with your system: Any Micro controllers, ARM or DSP systems can be interfaced with HM-10. SOC systems. Personal Digital Assistants (PDAs) Computer Accessories Other systems your want to use under bluetooth functions. DEVICE FEATURES Fully Qualified Bluetooth V4.0 BLE module Full Speed Bluetooth Operation with Full Piconet Support and Scatternet Support Increadible samll size with 3.3V input, and RoHS Compliant