| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx + MCU Bluetooth Bluetooth v4.1 Low Energy - 2.4GHz 4Mbps 10dBm -93dBm - I²S, UART - 2.2 V ~ 4.8 V 112.5mA 112.5mA |