DescriptionModule13.2 GRBL is a three-axis stepper motor driver module in the M5Stack stackable module series. It uses the ATmega328P-AU controller with three DRV8825PWPR stepper motor driver chips, enabling simultaneous control…
Module13.2 GRBL is a three-axis stepper motor driver module in the M5Stack stackable module series. It uses the ATmega328P-AU controller with three DRV8825PWPR stepper motor driver chips, enabling simultaneous control of three bipolar stepper motors.
The module provides an I2C communication interface and integrates a DIP switch for motor step subdivision adjustment, up to 1/32 microstepping, and I2C address configuration. It supports dual I2C addresses 0x70 and 0x71, allowing two Module13.2 GRBL modules to be stacked for six-axis control.
The power input interface supports DC 9-24V, and each motor driver channel supports up to 1.5A drive current. It also includes three sets of limit switch signal interfaces for external limit switches, using active-low motor braking control.
| 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 |
| Power Input | DC 9-24V |
| Product Size | 54.2 x 54.2 x 13.2mm |
| Product Weight | 22.5g |
| Package Size | 95.0 x 65.0 x 25.0mm |
| Gross Weight | 42.3g |
| MODE2 | MODE1 | MODE0 | Step Mode |
|---|---|---|---|
| 0 | 0 | 0 | Full step with 71% current |
| 0 | 0 | 1 | 1/2 step |
| 0 | 1 | 0 | 1/4 step |
| 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 |
It uses three DRV8825PWPR stepper motor driver chips.
One Module13.2 GRBL can control three bipolar stepper motors simultaneously.
Yes. Two Module13.2 GRBL modules can be stacked to achieve six-axis control by using I2C addresses 0x70 and 0x71.
The module supports up to 1/32 microstepping.
The power input interface supports DC 9-24V.
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