Description of product

  1. Onboard ULN2003A motor driver chip
  2. Chip commonly used pin has led, convenient connection to use.
  3. Pin 5 to 12 v power supply.
  4. Onboard four-way signal lamp 4, the onboard XH - 5 p socket, can be connected directly to 28 byj - 48 models of stepper motor.
  5. PCB board size: 21(mm) x15.5 (mm) .