ITEM NAME:Stepper Motor DC 5V 28BYJ-48 + ULN2003 Stepper Motor Driver Module for Ardu T4L3 Stepper Motor DC 5V 28BYJ-48 + ULN2003 Stepper Motor Driver Module for Ardu T4L3 Diameter: 28mm Voltage: 5V The step angle: 5.625 x 1/64 Speed down ratio: 1/64 The 5 line 4 phase can use ordinary ULN2003 chip driver, it can be connected into the 2 phase and matched with the development board use, direct splicing, it is convenient to use stepper motor in the development board ULN2003A motor driver chip Chip all the pins already leads for easy connection to use 5-12V power supply 4-way signal indicator XH-5P socket, can be connected directly 28BYJ-48 Model stepper motor PCB board size: 40.5 (mm) x21.3 (mm) Package included: 1 x ULN2003 Stepper Motor Driver Module 1 x DC 5V Stepper Motor 28BYJ-48 Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..The 5 line 4 phase can use ordinary ULN2003 chip driver, it can be connected into the 2 phase and. 1 x ULN2003 Stepper Motor Driver Module. XH-5P socket, can be connected directly 28BYJ-48 Model stepper motor.