| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx + MCU General ISM < 1GHz - FSK, GFSK, GMSK, MSK 902MHz ~ 928MHz 300kbps 13.5dBm -116dBm 4kB ROM, 2.5kB RAM SPI 1 2.2 V ~ 3.6 V 12.8mA 24.1mA |