HM-10 New Portable 4.0 BLE Bluetooth 4.0 Uart Transceiver Module cc2540 CC2541 Central Switching Still use Bluetooth 2.1? 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 Read more about HM-10 New Portable 4.0 BLE Bluetooth 4.0 Uart Transceiver Module cc2540 CC2541 Central Switching[…]