I from Portugal and I was not able to find one of the suggested models of RC car for Donkey car and so I’m building a custom one.
My problem is related to the PCA9685 controller. In the hardware instructions I have seen, the PCA9685 is not connected to any power supply (usually 5V). So how does the Donkey car supply the steering servo? Is it supplied by the same battery that supplies to ESC?