Arduino Motor Shield (Rev 3)

Arduino Motor Shield (Rev 3)

Arduino | A-000000-00063
This Arduino Shield lets you drive two DC motors with your Arduino board.
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The Arduino Motor Shield

The Arduino Motor Shield lets you pilot 2 DC motors with your Arduino board. This Shield is based on the dual full-bridge driver L298P. With the Arduino Motor Shield you are able to pilot the direction and the speed of your motors independently one of the other.

Technical specifications of the Arduino Motor Shield

  • Operating Voltage : from 5V to 12V
  • Motor controller : L298P, Drives 2 DC motors or 1 stepper motor
  • Max current 2A per channel or 4A max (with external power supply)
  • Current sensing 1.65V/A
  • Free running stop and brake function

Powering the Arduino Motor Shield

The Arduino Motor Shield has to be powered by an external power supply. The L298 driver that is on the Arduino Motor Shield has 2 separate power connectors, one for logic and the other to power the motors. Indeed, the power that is necessary to the motors usually exceeds the power that can be supplied by the USB connection.

Connecting the Arduino Motor Shield to your Arduino board

The Arduino Motor Shield has 2 channels named A and B. Each channel uses 4 pins on the Arduino board and can be used to pilot a DC motor. This is also possible to combine the 2 channels to drive one unipolar stepper motor.

The following table describes the Arduino Pins that are used and their use.

Function Pins (channel A) Pins (channel B)
Direction D12 D13
PWM D3 D11
Brake D9 D8
Current Sensing A0 A1

Technical documentation of the Arduino Motor Shield

Click on the following links to download the documents.

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