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 ...

Fig. 2 shows the circuit diagram of the predictive failure control system for stepper motors. It is built around an Arduino Uno board (MOD1), an encoder (MOD2), a temperature sensor (S1), a current ...