Stepper module (DIY)

Regular price $8.00 Sale

The Microduino Stepper is a DMOS micro-step drive with a converter and the function of overcurrent protection. It can be used to operate bipolar stepper motors in full, half,1/4,1/8 and 1/16 stepping modes.


  • Easy to control;
  • Four optional stepping modes:full, 1/2,1/4 and 1/16
  • Perfect protection mechanism:
    • Overheating shutdown circuit, undervoltage lockout, overcurrent protection;
    • Grounding protection, load short-circuit protection;
  • Adopt potentiometer to adjust the current;
  • Automatic current decay mode detection / selection;
  • Compliant with smoke-free fire (NSNF) specification (ET package);
  • Unique set-in method,saving space.


  • Support the bipolar stepper motor;
  • Just input a pulse for the "STEP", it will drives the motor to produce micro-step without the need for phase sequence tables, high frequency control lines, or complex interface programming;
  • The maximum output current can be adjusted via potentiometer, resulting in a higher step rate;
  • Four optional stepping modes:
    • full,1/2,1/4 and 1/16;

Electrical Specifications

  • VCC voltage:
    • 3.3~5V
  • VMOT voltage:
    • 6~25V
  • Maximum operating current:
    • 1.4A
  • Under the Low current sleep mode, the current is less than 10uA;
  • Automatic current decay mode detection/selection;
  • Overheating shutdown circuit, undervoltage lockout and overcurrent protection;
  • Grounding and load short-circuit protection;

Pin Description

Microduino Stepper Pin Microduino Pin function
STEP Microduino IO port Pulse drives the stepper motor to generate micro-stepping
DIR Microduino IO port Control the rotation direction of the stepper motor
EN Microduino IO port Open or close the drive (active low)
VMOT External power source External power supply to the stepper motor
VCC VCC power to A4982 and Microduino