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13Amp 6V-30V DC Motor Driver


Elmwood Electronics has stopped accepting orders. This product might be available at PiShop.ca. Please check this blog post about our recent team merger.

The brushed motor is the most widely used motor because of its ease of operation. Just connect the two terminals to a DC power supply, and the motor will start rotating!

But if you want to control the speed and direction, you will need a micro-controller. That's where the MD13S comes in. It's one of the easiest to use brushed motor drivers!

The MD13S offer current protection that the MD10C does not. With new circuitry and design, The MD13S is able to limit and support current up to 30A max(10 seconds). You can run continuous current  at 13A without a heatsink (at room a temperature of 25°C).

It's also GROVE compatible, so get yourself a Grove shield. The MD13S is also smaller than a MD10C!

Which brush motorcan you use with the MD13S? As long as the motor meets these criteria, it should work fine:

  • Is a DC Brush motor (Two Terminals)
  • Operating voltage from 6V to 30V
  • Rated Current <= 13A
  • Peak Current <= 30A

Example of suitable DC brush motor with MD13S include (but are not limited to):


  • Bi-directional control for 1 brushed DC motor
  • Support motor voltage from  6V to 30VDC
  • Maximum current up to 13A continuous and 30A peak (10 seconds)
  • GROVE compatible
  • 3.3V and 5V logic level input.
  • Solid state components provide faster response time and eliminate the wear and tear of mechanical relay
  • Fully NMOS H-Bridge for better efficiency; no heat sink is required
  • Regenerative Braking
  • Speed control PWM frequency up to 20KHz (Actual output frequency is the same as input frequency)
  • Supports both locked-antiphase and sign-magnitude PWM operation, *NOT RC (Radio Control) PWM
  • SMD compatible
  • RoHS, FCC and CE compliance
  • Dimension: 61mm x 33mm

Documents/Example Code: 

Packing List:

  • 1 x MD13S motor driver board
  • 1 x Green + Black 2-way terminal blocks (Normally Black is for Motor, Green is for Power)
  • 1 x Grove connector (Grove to Grove)

Check out some videos created by users: