Stepper Motor HAT for Raspberry Pi HR8825 Drives Two Stepper Motors Up to 1/32 Microstepping for RPI 5 4B 3B+ 3B Zero 2 W 1.3

HR8825 Stepper Motor HAT for Raspberry Pi, Drives Two Stepper Motors, Up To 1/32 Microstepping
Stepper Motor HAT (B)

Alternative Solution Of Stepper Motor HAT,
Drives Two Stepper Motors, up to 1/32 Microstepping

For 3D Printer, Sculpturing machine, Mechanical arm...

 
Features at a glance

  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano

  • Onboard dual HR8825 motor controller IC with built-in microstepping indexer, drives two stepper motors, easy to use

  • 6 available microstepping modes, configured with the DIP switches: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step

  • Adjustable motor drive current via potentiometer, maximum 2.5A current output

  • Protection features: Overcurrent Protection (OCP), Thermal Shutdown (TSD), VM Undervoltage Lockout (UVLO)

  • Integrates 5V regulator, allows providing power to Raspberry Pi

  • Onboard multi connector options for stepper motors in different specifications

  • Comes with development resources and manual (examples in BCM2835, wiringPi, and python)

Specifications

Motor controller

HR8825

Motor drive voltage

8.2V~28V

Motor drive current

2.5A

Logic voltage

3.3V

Mounting hole size

3.0mm

Dimension

65 × 56mm


Raspberry Pi 40PIN GPIO compatibility

Designed for Raspberry Pi boards / Jetson Nano

Onboard 2-ch HR8825 Motor Driver Chip

Built-in converter for easy control, can drive two stepper motors

6 available microstepping modes

Configured via the DIP switches:
full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step

MODE2

MODE1

MODE0

Motor Microstepping Setting

0

0

0

full-step

0

0

1

half-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


Onboard Different Stepper Motor Interfaces

Easy access to stepper motors in different specifications

Pin

Motor Interface Description

VIN

8.2~28V Power Input

5V

5V Power

GND

Ground

A1

Output 1 terminal of bipolar stepper motor M1 winding A

A2

Output 2 terminal of bipolar stepper motor M1 winding A

B1

Output 1 erminal of bipolar stepper motor M1 winding B

B2

Output 2 terminal of bipolar stepper motor M1 winding B

A3

Output 1 terminal of bipolar stepper motor M2 winding A

A4

Output 2 terminal of bipolar stepper motor M2 winding A

B3

Output 1 terminal of bipolar stepper motor M2 winding B

B4

Output 2 terminal of bipolar stepper motor M2 winding B

Application Examples

Easy access to stepper motors in different specifications

for reference only, Raspberry Pi and stepper motors in the picture are NOT included.
What's On Board

  1. Raspberry Pi GPIO interface
    Can be connected to various Raspberry Pi HATs

  2. Motor interface
    Three different specifications of the motor interface, easy to use

  3. MP1482 power chip
    External power supply can be converted into 5V voltage to power the Raspberry Pi

  4. HR8825 motor driver chip
    Can drive two stepper motors

 

  1. External power supply interface
    8.2V ~ 28V DC power input

  2. Motor power switch
    You can choose whether the module supplies power to the Raspberry Pi

  3. DIP switch
    For setting 6 different step resolutions

  4. Potentiometer
    Adjustable motor drive current


Before ordering please check size chart for accurate fit.


Colors may vary slightly due to lighting, screen settings, or viewing conditions.


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