L293D Smart Car Stepper DC Motor Drivers Shield L293D Expansion Development Board

Operating Voltage: 5V to 12V
Motor controller: L293D, 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

Input and Output

This shield has two separate channels, called A and B, that each use 4 of the Arduino 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 bipolar 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