• This controller has multiple interface and feedback options that simplify servo control of commonly available DC motors.
• The module features three independent interfaces:
• a serial protocol for microcontroller-based applications,
• a pulse-width interface for connection to hobby radio control equipment or
• serial servo controllers, and an analog voltage interface for simple tests and demonstrations.

Advantages:

• Two feedback alternatives allows for closed-loop control of position or speed.
• can handle larger motors with its VNH2SP30 motor driver chip
• complete feedback-based solution for applications requiring bi-directional, closed-loop control.

How to use SMC04

• select either an analog voltage feedback or a digital encoder feedback (quadrature encoding is not supported).
• With the two feedback alternatives, various simple devices such as potentiometers can be used as sensors to achieve position or speed control.
• set up the motor controller’s parameters based on the physical properties of the mechanical system that is being driven.
• A feedback potentiometer is coupled to the mechanism output, and the user can then send position commands to the motor controller, which automatically drives the motor to reach the position.
• Alternatively, the mechanism and sensor can be arranged to provide speed feedback, in which case the motor controller maintains given speeds despite fluctuations in friction or supply voltage.
• The motor controller measures 2.475" x 1.175" and has an operating voltage of 6–16 volts, making the device well-suited for medium-sized robots and other projects powered by rechargeable 7.2 V or 9.6 V battery packs or 12 V lead-acid batteries. The motor controller serial protocol is compatible with other Pololu motion control devices, allowing multiple units to be connected to a single serial line to control a mixture of motors and hobby RC servos.