I’m a programer and don’t really have any experience with electronics, so I apologize for any noob questions.
So I am trying to build a quadcopter, and I was just wondering if the servo rail needs to be powered by a BEC if I’m just using four Afro Slim 20Amp ESCs?
I understand the adding a BEC to the servo rail is good thing in case the power module fails, but is it necessary for the ESCs I want to use? Could you please explain why the BEC is or isn’t necessary?
Also, I plan to add a BEC whether it is necessary for the ESCs or not; in case the power module fails. Would this BEC do the job? If not or if there is a better one, could you please point me to one?
And finally, would the BEC be connect to a PDB and go directly to the servo rail to power it?
I just have a few more. From what I understand, the specs for the ESCs say they don’t have any BECs which means I do not have to cut the middle wire of the ESC. Is this correct?
Also, I’m not planning to use a RC receiver, but rather a 3g/4g modem connected to the RPi2, which means I don’t have anything to power on the servo rail (for now). Does this mean that the BEC isn’t necessary for the servo rail? (I’m still planning to use the BEC as a backup in case the power module fails)