The 28BYJ-48 is a professional 4- -Wire stepper motor, which is designed for your project, and can be driven by ordinary ULN2003 chip. It can also be connected 2 development board used for supporting the use of a direct plug and easy to use stepper motor used in the development board. Features - - Material: durable metal and plastic. - and 28BYJ-48 DC 5V 4- -Wire Stepper Motor with ULN2003 Driver Board. - Specially designed for your project. - The 4 -wire stepper motor can be driven by ordinary ULN2003 chip, and can also be connected 2 development board used for supporting the use of a direct plug and easy to use stepper motor used in the development board. - ULN2003 using high-power stepper motor driver chip A, B, C, D four-phase LED indicates the status of the stepper motor work Stepper motor with a standard interface, when used directly pluggable. Package list: 1 * 28BYJ-48 DC 5V 4- -Wire Stepper Motor 1 * ULN2003 Driver Board