Actions
Forum Thread Details
  • State Not Answered
  • Replies 1 reply
  • Subscribers 390 subscribers
  • Views 180 views
  • Users 0 members are here
Related

RF data analyse, SPI

Former Member

Hey everyone.

 

I recently bought a Hubsan x4 (quadcopter) and i was thinking, if i could control it with my computer (i know its possible).

I began searching the internet for ways to do it, i knew that i would need some RF components to do it, and i settled on a nRF24L01, its a transiver. Now the big task comes, i have to figure out how to talk to the quad copter, I think i found out that it uses SPI but, now i need to find out what i need to send to the quad and what i am going to reserve, basically protocol analysis.

 

This i where you come in, how do i figure out the protocol?

 

Thanks in advance

Nicolai, the electronics student

Parents
  • 0

    Hi Nicolai,

     

    You'll likely need some microcontroller in-between the nRF device and the quadcopter controller, to translate from your wireless protocol into SPI commands that the quadcopter understands.

    I'm not sure this is entirely easy if you've not done it before.

    I can imagine you may need to do some validation before sending SPI instructions to the quadcopter, in case there was an issue with the wireless data transmission (e.g. error).

    Regarding the SPI protocol, you could try to analyse it (i.e. reverse engineer it? I think is what you're suggesting?) but better to look for documentation on it for your particular

    quadcopter, so that if there are any subtle things they are not missed.

     

    Sorry for the vague answer, but basically it really depends on what detail you can glean about the SPI interface for your particular quadcopter controller board, and how experienced you

    are in writing software for the microcontroller and for your PC side (both of which need to run in real-time).

Reply
  • 0

    Hi Nicolai,

     

    You'll likely need some microcontroller in-between the nRF device and the quadcopter controller, to translate from your wireless protocol into SPI commands that the quadcopter understands.

    I'm not sure this is entirely easy if you've not done it before.

    I can imagine you may need to do some validation before sending SPI instructions to the quadcopter, in case there was an issue with the wireless data transmission (e.g. error).

    Regarding the SPI protocol, you could try to analyse it (i.e. reverse engineer it? I think is what you're suggesting?) but better to look for documentation on it for your particular

    quadcopter, so that if there are any subtle things they are not missed.

     

    Sorry for the vague answer, but basically it really depends on what detail you can glean about the SPI interface for your particular quadcopter controller board, and how experienced you

    are in writing software for the microcontroller and for your PC side (both of which need to run in real-time).

Children
No Data