PN00218-CYT14 Motor Driver 2 Channels 30Amp 7V-35V DC SmartDriveDou MDDS30


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WARNING: The Cytron engineering team has discovered that some BECs sold online, claiming to be 5V supplies, are actually 6V. Please do not use supplies of 6V or higher in conjunction with the controller's 5V pin, as doing so will damage the MCU of the controller.

SmartDriveDuo-30 is a versatile and powerful motor driver for combat robots, capable of driving two DC brushed motors in independent or mixed mode with ease via RC signals. With a peak current support of 80Amps per channel (1 second) and a continuous current of 30Amps per channel, this motor driver is ideal for medium power motors.

SmartDriveDuo-30 is perfect for a wide range of applications, including:

  1. Combat robots, for driving multiple motors with precision and ease.
  2. Robotics and automation systems that require a mix of independent and combined motor control.
  3. RC vehicles, such as remote-controlled cars, boats, and aircraft.
  4. Industrial control and automation processes, for precise and responsive control of multiple motors.
  5. Agricultural and mining equipment, for smooth and efficient operation of multiple motors.
  6. Remote control lawn mowers, for easy and efficient control of cutting and moving.

This motor driver is smart enough to accept a control signal from:

  • RC (Radio Control)
  • PWM of microcontroller
  • Analog voltage of Potentiometer/Variable Resistor/Joystick
  • UART data of microcontroller

This motor driver is suited for a brushed dc motor with the following specifications:

  • Operating voltage from 7V to 35VDC
  • Rated Current <= 30A
  • Peak Current <= 80A


  • Bi-directional control for dual brushed DC motor
  • Support motor voltage from 7V to 35VDC
  • Maximum current up to 80A peak (1 second), 30A continuous, each channel
  • On board MOSFETs are switched at 18 KHz for quiet operation
  • Regenerative Braking
  • On board Error LEDs to indicate: (each channel)
    • Input Error (Blinks 2 times)
    • Under Voltage Warning (Blinks 3 times)
    • Over Voltage Protection (Blinks 4 times)
    • Over Temperature Protection (Blinks 5 times)
  • Thermal protection.
  • Current limit protection
  • Multiple input modes:
    • RC (Radio Control)
    • Analog voltage from potentiometer/variable resistor/joystick
    • PWM and DIR (sign-magnitude and locked-antiphase) from microcontroller
    • Serial Simplified or Serial Packetized from microcontroller
  • GROVE compatible connectors for control input
  • RC (Radio Control) friendly connectors
  • On board push buttons for fast test and manual operation
  • On board LED indicators for Error, RUN, Over current, motor output, for each channel
  • Dimension: 81.28mm(W) x 101.60mm (L) x 42mm (H)


User Manual

Arduino Library and Example (Github)

3D Model

Mounting Hole Dimensions:


20 Reviews Hide Reviews Show Reviews

  • 5
    Great product

    Posted by Byron Woodside on Jun 17th 2024

    Vendor takes time to discuss / advise

  • 5
    Direct swap

    Posted by Jesse on May 27th 2024

    Was running sabertooth 2x32 this was 3/4 the price and had a fan option nice big heart sink.. I like it.

  • 5
    Tough and well designed

    Posted by Akom on Oct 29th 2023

    I tried several cheap controllers before giving up and spending the money on this one. Well worth it. Super smooth and the features are perfect for my needs. If I decide to switch to using a microcontroller, it has that covered too. I mis wired it when I first installed it, shorted the BEC output (put one of the plugs in the wrong way), and the controller just blinked at me and did not fry. It's driving an rc lawnmower with two wheelchair motors at about 28v. They routinely hit 20A each, and full stall torque is near 70A. Works great.

  • 5
    Great item for the price

    Posted by robt on Sep 27th 2023

    Purchased two for remoter control lawn mower. They are excellent. Needed two for four wheel drive.

  • 5
    Great item for the price

    Posted by Rob on Jul 3rd 2023

    Excellent choice

  • 5
    Motor drver

    Posted by Angel Diaz on May 29th 2023

    Great product....

  • 5
    Best controller for rc mower

    Posted by Terry Singh on Apr 24th 2023

    Easy to use and has features to test motors without rc controller hooked up.

  • 5

    Posted by Tory Cooper on Mar 12th 2023

    Really like this motor controller, having the dip switches to fine-tune it's operation and the ease in which I was able to connect it to an RC receiver made this motor controller the perfect fit for my robot.

  • 5

    Posted by Sean Nelson on Aug 27th 2022

    The MDDS30 was great. It looks clean and well made. It works exactly as advertised and made my build much easier. I had to return it because I needed bigger motors which will pull more current than the MDDS30 will support. I wish that was not the case. It was great to use.