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Foreword: I am doing my Bachelors in Aerospace Engineering and part of the requirements to graduate (and get a good grade) is that I must complete 3 projects of my choice, and it must be unique. So in order for one to be unique my only choice is to make a drone that does something unique and important/useful, which requires a lot of electronics & programming. So as you'd guess I have small knowledge on electronics and programming. I am also completely new to drone electronics and Arduino. Doing a project that involves aerodynamics and mechanics takes a lot of research and time (which I am short on), and I am going to reserve that for my M.Sc.

Moving on, I am using an Arduino nano and an accelerometer as my flight control board for the esc's+motors. So I want to connect my 4 esc's in which each have a power/signal/ground wire, to the nano. In total there are 12 wires. For the nano, should I only be connecting the signal wires to one i/o? If so, what happens to the power and ground wires?

Also, part of my set up requires that the Vcc on my accelerometer is connected to a 5V supply. Should I just connect it to the 5V pin on the arduino? A link of the set up of the drone is here: https://www.dropbox.com/sh/qcfd27buc7o9ep0/AAAjgNwChewsASVR9SUxpiUXa?dl=0&preview=Schematics.png

The motor/pdb/esc connections are easy and I don't need much help with that.

I have another project in mind, which has an Arduino Nano Vin pin connected to 7.5V. How do I achieve this?

I already got help from the link above with setting up an Arduino programme to govern the esc's. It would be easier to just get a ready made flight controller and connect the 4 esc's to their three power/signal/ground wires to each port but I wanted to challenge myself a bit more by building an Arduino based flight controller.

closed as too broad by MichaelT, Juraj, Greenonline, VE7JRO, jsotola Apr 20 at 22:22

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Do you really want to use an Arduino nano for this. It is far from perfect for this. Why don't you use a real flight controller? – chrisl Apr 20 at 17:24