ULN2003 Stepper Motor Driver Board is use the ULN2003 DARLINGTON ARRAYS to drive the 4-phase 5-wire stepper motor (5v-12v). It's easy to use Arduino or other development platform to drive the stepper motor by this driver board.

• The Mini Stepper Driver is small size and easy to use
• It used ULN2003 to amplify the control signal from the Arduino
• The Drive voltage can be up to 15V
• Only 4 channels used for driving steppers, four status LEDs respectively, you can only see it flashing when you slow down the signal
• Separate Power channel for power supply
• JST XH2.54 stepper 5-wire interface for standard stepper, one COM VCC, and four signal GND

How to Control Stepper :

• Step motor is to a machine to convert pulse to angle displacement
• So if you give stepper driver a certain pulse signal, it will drive step motor to a certain angle
• You can control the angle the stepper moved by the number of the pulse
• And you also can control the speed of the stepper rotate by the frequency of the pulse. The following picture is the schematic of the stepper driver

• The logic control voltage : 3~5.5V
• Motor Supply Voltage : 5~ 15V
• It can sinks 500mA from a 50V Supply, but Limit the Driver Voltage under 15V
• Operating Temperature : -25~+90°