Geeetech Crazyradio 2.4Ghz nRF24LU1+ USB radio dongle with antenna for Crazyflie Nano Quadcopter Aircraft Helicopter Parrot AR Drone Based on the nRF24LU1+ 2.4 GHz SoC from Nordic Semiconductor USB bootloader enables firmware upgrades via USB Can be used as stand-alone module with RC controller via expansion header. Supports 12V PPM input and power supply. Comes with GPLv3 firmware developed fully by Bitcraze from datasheet and a build environment that allows you to develop your own firmware Note: There's still no firmware to support this feature but it's under development