Description:
The Motor Shield is based on the L298, which is a dual full-bridge driver designed to drive inductive loads such as relays,
solenoids, DC and stepping motors. It lets you drive two DC motors with your for Ardu board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features. The shield isTinkerKitcompatible,
which means you can quickly create projects by pluggingTinkerKitmodules to the board.

Feature:
- Working Voltage: 5V ~ 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

About power:
The Motor Shield must be powered only by an external power supply.
Because the L298 IC mounted on the shield has two separate power connections,
one for the logic and one for the motor supply driver. The required motor current often exceeds the maximum USB current rating.
External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery.
The adapter can be connected by plugging a 2.1mm center-positive plug into the for Ardu"s board power jack on
which the motor shield is mounted or by connecting the wires that lead the power supply to the Vin and GND screw terminals,
taking care to respect the polarities.
To avoid possible damage to the for Ardu board on which the shield is mounted,
we recommend using an external power supply that provides a voltage between 7 and 12V.
If your motor require more than 9V we recommend that you separate the power lines of the shield and the for Ardu board on
which the shield is mounted. This is possible by cutting the "Vin Connect" jumper placed on the back side of the shield.
The absolute limit for the Vin at the screw terminals is 18V.

The power pins are as follows:
Vin on the screw terminal block, is the input voltage to the motor connected to the shield.
An external power supply connected to this pin also provide power to the for Ardu board on which is mounted.
By cutting the "Vin Connect"jumper you make this a dedicated power line for the motor.
GND Ground on the screw terminal block.
The shield can supply 2 amperes per channel, for a total of 4 amperes maximum.

About input and output:
This shield has two separate channels, called A and B, that each use 4 of the for Ardu pins to drive or sense the motor.
In total there are 8 pins in use on this shield.
You can use each channel separately to drive two DC motors or combine them to drive one unipolar stepper motor.

The shield"s pins, divided by channel are shown in the table below:
Function
pins per Ch. A
pins per Ch. B
Direction
D12
D13
PWM
D3
D11
Brake
D9
D8
Current Sensing
A0
A1

If you don"t need the Brake and the Current Sensing and you also need more pins for your application you can disable this features by cutting the respective jumpers on the back side of the shield.

Shenzhen Ruize Technology Co., Ltd., is a well-known electronic component company.

Over these years, adhering to the "honesty, quality first" principle, with excellent product quality, enthusiastic service, and wide range of products, we gained a high degree of trust from our customers. 
No matter you are domestic or foreign businessmen, we are always ready to make you satisfied.

We sincerely welcome your business negotiations, share mutual benefit and common development.