Datasheet

If you would like to have a single DC power supply for the Arduino and motors

Say a wall adapter or a single battery pack with 6-12VDC output, simply plug it into the DC jack on the Arduino or the

2-pin power terminal block on the shield. Place the power jumper on the motor shield.

Note that you may have problems with Arduino resets if the battery supply is not able to provide constant power, so it

is not a suggested way of powering your motor project. You cannot use a 9V battery for this, it must be 4 to 8 AA

batteries or a single/double lead acid battery pack.

If you would like to have the Arduino powered off of USB and the motors powered off of a

DC power supply

Plug in the USB cable. Then connect the motor supply to the power terminal block on the shield. Do not place the

jumper on the shield.

This is a suggested method of powering your motor project as it has a split supply, one power supply for logic, and one

supply for motors

If you would like to have 2 separate DC power supplies for the Arduino and motors.

Plug in the supply for the Arduino into the DC jack, and connect the motor supply to the power terminal block. Make

sure the jumper is removed from the motor shield.

No matter what, if you want to use the DC motor/Stepper system the motor shield LED should be lit indicating good

motor power