M5Stack GRBL Module 13.2 Stepmotor Driver


Description

GRBL 13.2 is a three-axis stepper motor driver module in the M5Stack stacking module series. It uses an ATmega328P-AU controller with three sets of DRV8825PWPR stepper motor driver chip control ways, which can drive three bipolar steppers at the same time.

Using the I2C communication interface (default address:0x70) and integrated DIP switch for adjusting motor step subdivision (maximum support of 1/32 step subdivision) and I2C address adjustment (support dual address adjustment 0x70, 0x71), You can achieve six-axis control by stacking two GRBL 13.2 modules.

The power input interface is DC/9-24V, the motor drive current can reach 1.5A, and three sets of limit switch signal interfaces are open, which can be used to connect an external limit switch (active low) to realize the motor braking function. Suitable for a variety of stepping motor motion control scenarios, such as printers, robotic arms, etc.

Features

  • ATmega328P-AU controller

  • Three-axis DRV8825PWPR stepper motor driver

  • Drive current up to 1.5A

  • Drive bipolar stepper motor

  • Maximum 1/32 mode STEP subdivision

  • Limit switch interface (active low)

Applications

  • Printer

  • scanner

  • Office automation machine

  • Factory automation

  • robot technology

Specifications

Resources
Parameter

Motor driver chip

DRV8825PWPR

Controller chip

ATmega328P-AU

Maximum drive current of single channel

1.5A

Support maximum step subdivision

1/32

Interface

XT2.54-4P

Net weight

22.5g

Gross weight

42.3g

Product size

54.2*54.2*13.2mm

Package size

95*65*25mm

PinMap

M5Core(GROVE A)
GPIO21
GPIO22
5V
GND

GRBL 13.2

SDA

SCL

VCC

GND

Schematics

Step subdivision adjustment

MODE2
MODE1
MODE0
STEP MODE

0

0

0

Full step (2-phase excitation) with 71% current

0

0

1

1/2 step (1-2 phase excitation)

0

1

0

1/4 step (W1-2 phase excitation)

0

1

1

1/8 step

1

0

0

1/16 step

1

0

1

1/32 step

1

1

0

1/32 step

1

1

1

1/32 step

I2C address adjustment

Switch
Address

0

0x70

1

0x71

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