Using DC motor

Hi, I want to use DC motor in my arduino and I learned that it is dangerous and might fry my board. I want to use an external battery supply, should I use FET? help me pls

Tell us about your DC motor.

dear YuridaE,
It is hard to help you without proper information.

more details on the dc motor. You have a wide array of motor drivers to control your dc motor:

esc's using the servo library

Motor drivers.

your choice.