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 ...

This allows the implementation of any logic to handle the actual servo control. For example, you can make use of the standard Servo library for simple setups or add logic to control servos via PWM ...

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 ...