28 Jun '16, 6pm

Reverse Engineering Quadcopter Protocols

Reverse Engineering Quadcopter Protocols

Necessity is the mother of invention, but cheap crap from China is the mother of reverse engineering. [Michael] found a very, very cheap toy quadcopter in his local shop, and issued a challenge to himself. He would reverse engineer this quadcopter’s radio protocol . His four-post series of exploits covers finding the right frequency for the radio, figuring out the protocol, and building his own remote for this cheap toy. [Michael] was already familiar with the capabilities of these cheap toys after reading a Hackaday post , and the 75-page, four language manual cleared a few things up for him. The ‘Quadro-Copter’ operated on 2.4GHz, but did not give any further information. [Michael] didn’t know what channel the toy was receiving on, what data rate, or what the header for the transmission was. SDR would be a good tool for figuring this out, but thanks to Travis Goodspeed, ...

Full article: http://hackaday.com/2016/06/28/reverse-engineering-quadco...

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