Here is a design for a full-featured motor shield that will be able to power many simple to medium-complexity projects. 2 connections for 5V 'hobby' servos connected to the Arduino's high-resolution ...

6 to 24V from T1SP on screw terminal block (PoDL = Power over Data Line) 6 to 24V from VIN on screw terminal block Warning: 24V DC is fine with Arduino UNO R4, but can potentially damage an Arduino ...