Additional sensors on Anafi

#1

Hey there,

I am doing my college thesis with the Parrot Anafi. However, for my research purpose, I may not have enough environment data with the front camera and the GPS signal.

Thus, I have ended with a few questions in mind:

  1. How much extra weight can the Anafi lift up?
  2. Can I connect extra sensors to the Anafi battery module?
  3. With the current development framework (Olympe), am I able to connect these sensors? Maybe throughout a ROS module?
    • Can I interface Olympe like a ROS module?

A huge big thanks in advance for the multi-answering response :joy: :grin:

Quino

#2

Anafi has not be designed for additional custom payloads and this is not something that we can encourage. It is not just a matter of extra weight. Even if the drone would seem to tolerate an extra (properly balanced ?!) weight (let say 10-50g maybe more?) there is no way to give you an absolute answer without simulating it and validate the change on a real drone. The drone flight controller running in the firmware can compensate (with degraded performances) for some deviations from the nominal flight model (mass, inertia, wind, pressure, …) up to a certain point. Beyond that point, the drone might :

  • not takeoff (because it is too heavy), or if you have no luck
  • loose its flight envelope protection, then
  • become unstable (during takeoff, while piloting it or in hovering), then
  • detect that something is fundamentally wrong (drone controller: why am I upside down?), then
  • stop its propeller by precaution

Please, whatever you do be careful!

To my knowledge Anafi currently does not support any kind of extra module.
It sure could be done somehow with some custom drone firmware but not without some non-trivial development effort from Parrot.
I see that @Jerome has created a new wishlist topic on the forum so may be you should post there and explain exactly what you are trying to do.

No, this is currently not supported either.

Olympe is not an ROS module. I am not an ROS expert but I think Olympe could relatively easily be packaged inside an ROS module.

Regards

Nicolas

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