If you intend using DC motor brushed or brushless then you need to look at low voltage ones (12 or 24 volts say). So you need a power supply to provide the required DC for powering your arduino and the motor driver.
If you intend using DC motor brushed or brushless then you need to look at low voltage ones (12 or 24 volts say). So you need a power supply to provide the required DC for powering your arduino and the motor driver.