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HRB8825 Stepper Motor HAT For Raspberry Pi
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HRB8825 Stepper Motor HAT For Raspberry Pi, Drives Two Stepper Motors, Up To 1/32 Microstepping Stepper Motor HAT (B) Alternative Solution Of Stepper Mot...
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HRB8825 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
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
MODE2MODE1MODE0MOTOR 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
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
PINMOTOR 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
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
-
Raspberry Pi GPIO interface
Can be connected to various Raspberry Pi HATs -
Motor interface
Three different specifications of the motor interface, easy to use -
MP1482 power chip
External power supply can be converted into 5V voltage to power the Raspberry Pi -
HR8825 motor driver chip
Can drive two stepper motors
-
External power supply interface
8.2V ~ 28V DC power input -
Motor power switch
You can choose whether the module supplies power to the Raspberry Pi -
DIP switch
For setting 6 different step resolutions -
Potentiometer
Adjustable motor drive current
Pin Definition
Outline Dimensions
Resources & Services
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Jargon buster
Plain-language definitions for the technical terms used above.
- DIP switch
- A DIP switch is a small set of physical on/off switches used to configure hardware settings without software. It matters because changing features such as auto power-on or charging limits may require moving these tiny switches correctly.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
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