Motor Drivers

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to 2A/phase.

Here is a design for a full-featured motor shield that will be able to power many simple to medium-complexity projects.

This PCB lets you plug four HUB-ee wheels into one controller for synchronous drive (i.e. all the wheels plugged into this PCB will get the same control signals). It also isolates the quadrature encoder channels of each wheel and routes one set through to the controller whilst making all the quadrature and standby pins for each wheel available on pin headers.

The LN298 is a high voltage, high current, dual full-bridge motor driver designed to  accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors.