Stepmotor Module with MEGA328P (DRV8825)+FAN Module for Stepmotor+12V Power Adapter

Regular price $26.99
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STEPMOTOR is used for stepper motor control. It is perfect for any motion project as it can drive up to 3 Stepper motors with GRBL control.

It is built with MEGA328P has been flashed GRBL firmware. The module comunicates with M5Core via I2C(0x70)

Integrated 3 DRV8825, a simple but very powerful board that can control one bipolar stepper motor at the time and allows micro stepping up to 1/32 of a step.

Product Features

  • 9-24V Power Input
  • 3-way stepper motors (X, Y, Z)

Kit includes

  • 1x Step Motor Module
  • 12V Power (Optional)
  • 1x 5V FAN Module for heat dissipation (Optional)


  • DIY 3D Printer
  • Simple Robot Arm




1. Arduino IDE

The code below is incomplete. TO get complete code, please click here.

    If Button A was pressed,
    stepmotor will rotate back and forth at a time

#include <M5Stack.h>
#include <Wire.h>

#define STEPMOTOR_I2C_ADDR 0x70

// initialization

// Controlling Protocol:
//  G<n> X<distance>Y<distance>Z<distance> F<speed>
SendCommand(STEPMOTOR_I2C_ADDR, "G1 X20Y20Z20 F500");
SendCommand(STEPMOTOR_I2C_ADDR, "G1 X0Y0Z0 F400");

// Get Data from Module.
Wire.requestFrom(STEPMOTOR_I2C_ADDR, 1);
if (Wire.available() > 0) {
  int u =;
  if (u != 0) Serial.write(u);

// Send Data to Module.
while (Serial.available() > 0) {
  int inByte =;
  SendByte(STEPMOTOR_I2C_ADDR, inByte);

2. UIFlow

Wanna explore the easiest way of Servo programming?? Check out the Blockly Platform at UIFlow.

To get complete code, please click here.


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