The main aim is to connect 4 motors in parallel each with separate ESC's to a single GND. I want to do this because there is a limited number of GND sockets built in the Arduino microcontroller. I have made a simple schematics that is hopefully a functioning parallel connections of the ESC, motors and batteries. Would this theme work for its purpose?
There is one wire directly from one of the ESC's to the GND socket in the Arduino. Then below that another the GND wire from the next ESC joins with the main wire down to the GND socket on the Arduino board. Please note that the +5v wires from the ESC's are left disconnected to anything. Obviously, the signal wire to the digital I/O on the Arduino board are separate for each set of motor and ESC. The three wires from the brushless motors are connected to the ESC's as per normal.
Would this work? Or are the wiring from the motor to the ESC dysfunctional?