Module13.2 GRBL is a three-axis stepper motor driver module in the M5Stack stackable module series. It uses the ATmega328P-AU controller paired with three DRV8825PWPR stepper motor driver chips, enabling simultaneous control of three bipolar stepper motors. It provides an I2C communication interface (addr: 0x70) and integrates a DIP switch for adjusting motor step subdivision (up to 1/32 microstepping) and I2C address configuration (supports dual addresses 0x70 and 0x71). This means you can achieve six-axis control by stacking two Module13.2 GRBL modules. The power input interface supports DC 9~24V, with a motor drive current of up to 1.5A. It also features three sets of limit switch signal interfaces for external limit switches to enable motor braking (active low). It is suitable for various stepper 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
Suitable for bipolar stepper motors
Maximum 1/32 microstepping
Limit switch interface (active low)
Includes
1 x Module13.2 GRBL
Applications
Printers
Scanners
Office automation machines
Factory automation
Robotics
Specifications
Specification
Parameter
Motor Driver Chip
DRV8825PWPR
Controller Chip
ATmega328P-AU
Communication Interface
I2C Communication @0x70, 0x71
Max Driving Current per Channel
1.5A
Maximum Supported Microstepping
1/32
Interface Type
XT2.54-4P
DC Female Socket
Input voltage: DC 9 ~ 24V, compatible with DC35135 3.5 x 1.35mm (center positive, outer negative)
