Pololu 2507

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  • Jameco Part no.: 2223911
  • Manufacturer: Pololu
  • Manufacturer no.: 2507
  • HTS code: 8542310000
  • Web Exclusive
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VNH5019 Dual Motor Driver Shield for Arduino

Get your motors moving! This shield makes it easy to control two high-power DC motors with your Arduino or Arduino-compatible board. Its dual robust VNH5019 motor drivers operate from 5.5V to 24V and can deliver 12A continuous (30 A peak) per motor, or a continuous 24A (60 A peak) to a single motor connected to both channels. These drivers also offer current-sense feedback and accept ultrasonic PWM frequencies for quieter operation. The Arduino pin mappings can all be modified if the defaults are not compatible with your project, and the motor driver control lines are broken out along the left side of the shield for general-purpose use without an Arduino.

This motor driver shield and its corresponding Arduino library (download here) make it easy to control two bidirectional, high-power, brushed DC motors with an Arduino or compatible board, such as the A-Star 32U4 Prime. The board features a pair of robust VNH5019 motor drivers from ST and incorporates most of the components of the typical application diagram on page 14 of the VNH5019 datasheet (475k pdf), including pull-up and protection resistors and FETs for reverse battery protection. It ships fully populated with its SMD components, including the two VNH5019 ICs. Stackable Arduino headers and terminal blocks for connecting motors and motor power are included but are not soldered in (see the Included Hardware section below).

This versatile motor driver is intended for a wide range of users, from beginners who just want a plug-and-play motor control solution for their Arduinos (and are okay with a little soldering) to experts who want to directly interface with ST's great motor driver ICs. This versatility, along with an option to power the Arduino directly from the shield, sets this board apart from similar competing motor shields.

For a lower-power, lower-cost alternative to this shield, please consider the dual MC33926 motor driver shield, which has a very similar design and can deliver a continuous 3A per channel.


  • Wide operating voltage range: 5.5V - 24V 1
  • High output current: up to 12A continuous (30A maximum) per motor
  • Motor outputs can be combined to deliver up to 24A continuous (60A maximum) to a single motor
  • Inputs compatible with both 5V and 3.3V systems (logic high threshold is 2.1V)
  • PWM operation up to 20 kHz, which is ultrasonic and allows for quieter motor operation
  • Current sense voltage output proportional to motor current (approx. 140 mV/A)
  • Motor indicator LEDs show what the outputs are doing even when no motor is connected
  • Can be used with an Arduino or Arduino clone (through shield headers) or other microcontroller boards (through 0.1" header along the left side)
  • When used as a shield, the motor power supply can optionally be used to power the Arduino base as well
  • Arduino pin mappings can be customized if the default mappings are not convenient
  • Arduino library makes it easy to get started using this board as a motor driver shield
  • Detailed user's guide
  • Reverse-voltage protection
  • Robust drivers:
        ·Can survive input voltages up to 41V
        ·Undervoltage and overvoltage shutdown
        ·High-side and low-side thermal shutdown
        ·Short-to-ground and short-to-Vcc protection

    1While the overvoltage protection typically kicks in at 27V, it can trigger at voltages as low as 24V, so we do not recommend using this motor driver with 24V batteries, which significantly exceed 24V when fully charged. If the shield is configured to power an Arduino or Arduino clone, the supply voltage must conform to that Arduino's input voltage requirements.

    Included Hardware

    This motor driver board ships with all of the surface-mount parts populated. However, soldering is required for assembly of the included through-hole parts. The following through-hole parts are included:
  • One extended/stackable 1x10 female header (for Arduino shields)
  • Two extended/stackable 1x8 female headers (for Arduino shields)
  • Two extended/stackable 1x6 female headers (for Arduino shields)
  • Three 2-pin, 5 mm terminal blocks (for board power and motor outputs)
  • 40-pin 0.1" straight breakaway male header (may ship in several pieces, such as two 20-pin strips)
  • A 0.1" shorting block (for optionally supplying shield power to Arduino) is also included.

    You can solder the terminal blocks to the six large through-holes to make your motor and motor power connections, or you can break off a 12x1 section of the 0.1" header strip and solder it into the smaller through-holes that border these larger holes. Note, however, the terminal blocks are only rated for 16A, and each header pin pair is only rated for a combined 6A, so for higher-power applications, thick wires should be soldered directly to the board.

    When not using this board as an Arduino shield, you can solder the 0.1" headers to the logic connections along the left side of the board to enable use with custom cables or solderless breadboards, or you can solder wires directly to the board for more compact installations. Note that motor and motor power connections should not be made through a breadboard.

    The motor driver includes three 47µF electrolytic power capacitors, and there is room to add additional capacitors (e.g. to compensate for long power wires or increase stability of the power supply). Additional power capacitors are usually not necessary, and no additional capacitors are included with this motor driver.

    The two mounting holes are intended for use with #4 screws (not included). They have a horizontal separation of 0.30" and a vertical separation of 1.70".

    An Arduino is not included.

    NOTE: This product can get hot enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.

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