Motor Adapter for myRIO

Overview

The Motor Adapter for NI myRIO allows you to easily connect and control either one stepper motor, two DC motors or two servos independently through the MXP connector on your myRIO. It has been designed so that no additional circuitry is required to drive motors. Just supply power and you're on your way!

Slide switches are used to select which motor configuration (servo or DC / stepper) is used. Servo motors are connected via standard 3 pin headers while DC motors are connected via 6-pin or screw terminal connectors and stepper motors are connected using screw terminals. One quadrature encoder input can be routed between the 6-pin connectors using a DIP switch or wired directly using screw terminals.

Key Features:

• Uses the myRIO Expansion Port (MXP) connector
• Can be configured to work with 2 DC motors, 1 stepper motor, or 2 RC servos
• Current sensing and control with high/low gain control and over-current protection
• 6V-16V input voltage using screw-terminal supply connections
• 34-pin female breakout allowing direct user access to signal pins
• Onboard quadature encoder interface to myRIO encoder inputs
• User switches for selecting servo or motor connections
• Power LED indicator

Configuring the Adapter

Pin Connections

Using the Adapter with myRIO

Compatibility Notes