Arduino motor amp servo driver boards arduino 1438 a design for a fully featured motor shield that can power many simple to medium complexity projects amongst the features included in this kit are servo connections from dedicated timer 4x h bridges with chipset to run motors on 45 to 36v dc up to 4x bi directional motors with individual speed selection up to 2x stepper motors with multiple stepping types big terminal block connectors for easy and versatile connections provision for c