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libcrazyradio

So I have a bunch of nrf24 based sensors which works great, using bitbanged spi modules like these:

http://www.amazon.com/Arduino-NRF24L01-2-4GHz-Wireless-Transceiver/dp/B00O9O868G

And they work great. But then I found that the crazyflie copter folks had a usb radio with nrf24 and a nice antenna.

http://www.amazon.com/SeeedStudio-Crazyradio-2-4Ghz-Dongle-Antenna/dp/B00VYA3A2U

The antenna gives them great range, and it allows me to use any linux machine with usb to talk to nrf24 radios without having to have gpio pins available.

Truthfully, you could do this with an avr and v-usb or a atmega32u4 or something, but I had a crazyflie copter, so it made some sense.

Anyway, this is a C library for that usb device.

RX/TX Mode

So originally, the firmware for the crazyradio only did TX, since that's all it needed to do to send commands to the crazyflie radio.

But some folks put together RX support for the radio firmware as well (thanks internet!), so you must have updated firmware to run this.

I'm not sure what version of firmware got PRX support, but since it's pretty simple to update the firmware, I've set the minimum firmware requirements to version 99.53 or better.

Firmware is here: https://github.com/bitcraze/crazyradio-firmware

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C library for the Bitcraze Crazyradio/Crazyradio PA

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