5 lines and 4 phases stepper motor can be driven by ordinary uln2003 chip; can also be connected to 2
phases development board.
It supports the use of direct plugging and easy to use the stepper motor in a development board.
ULN2003 stepper motor driver board:
A, B, C, D four-phase LED indicates the working status of the stepper motor.
Stepper motor with a standard interface, can be directly plug in when used.