The servo motors use the 5V of the Arduino board. The voltage regulator on the Arduino board could get hot. To avoid this, the newer Motor Shields have connection. The original comprehensive course designed for new and intermediatelevel Arduino Makers. Intro Stepper Motor Arduino Solar Tracker EV This instructable is the translation of another that was originally written in Spanish, so I beg your pardon if I. Introduction Control DC and Stepper Motors With L298N Dual Motor Controller Modules and Arduino. Arduino Stepper Motor Serial Control Connection© 2017