DFRobot Bluno Bee - Turn Arduino to a Bluetooth 4.0 (BLE) ready board DFRobot Bluno series is an Arduino-compatible Bluetooth 4.0(BLE) hardware solution designed by makers,and for makers. All Bluno products are Bluetooth 4.0 ready,and enjoy features such as wireless programming,smart App controlling,long communication range,and plentiful periphery modules. Bluno Bee is a serial bluetooth 4.0 module, it adopts XBEE form factor and is able to turn standard Arduino to bluetooth 4.0 (BLE) ready instantly Bluno Bee is designed to have voltage regulator which supports both 5V and 3.3V MCUs Bluno Bee is talking to your Arduino serial port, and able to turn your arduino to bluetooth 4.0 (BLE) ready instantly. Simply get an Arduino IO Sensor Expansion Shield and plug this module to xbee socket, you have an Arduino BLE ready board. It is suitable for applications like wearable device, for example a smart pedometer bracelet with Arduino + Android/IOS. By linking into star network of low power consumption, BLE achieves rapid real-time communication.