The Crazyradio is a 2.4 GHz radio USB dongle. Currently it's only used to communicate with the Crazyflie Nano Quadcopter but it can be adopted to work with a number of applications that are based on the low-cost 2.4 GHz chips from Nordic Semiconductor.
Note: There's still no firmware to support this feature but it's under development
Comes with GPLv3 firmware developed fully by Bitcraze from datasheet and a build environment that allows you to develop your own firmware
Programmable via SPI using expansion header
For more information about User Guide and documents, please check our WIKI page.