SKU: SBCD-1385
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Waveshare HRB8825 Stepper Motor HAT for Raspberry Pi

₹1,419.00 (Inclusive of all taxes)
Out of Stock

The Waveshare HRB8825 Stepper Motor HAT is an expansion board for Raspberry Pi series boards and Jetson Nano, featuring a dual HR8825 motor controller to drive two stepper motors with up to 2.5A current per motor, supporting 1/32 micro-stepping for precise motion control.

Features

  • Dual HR8825 motor controller IC for two independent stepper motors.
  • Compatible with Raspberry Pi series boards and Jetson Nano via 40-pin GPIO.
  • Offers configurable micro-stepping modes up to 1/32 for smooth and precise motion.
  • Adjustable motor drive current up to 2.5A per motor via potentiometer.
  • Integrated 5V regulator allows the HAT to provide power to the Raspberry Pi.

Out of stock

Description

The Waveshare HRB8825 Stepper Motor HAT is engineered to provide precise motion control for Raspberry Pi and Jetson Nano platforms. At its core lies the HR8825 dual H-bridge motor driver chip, which natively supports up to 32 subdivisions (1/32 micro-stepping). This capability ensures exceptionally smooth and quiet motor operation, crucial for applications requiring fine positioning or reduced vibration.

Beyond its micro-stepping prowess, the HR8825 driver integrates essential protection circuits. These include short-circuit protection, thermal shutdown (overheating), undervoltage lockout, and cross-conduction protection. These safeguards continuously monitor fault conditions and rapidly disable the H-bridge when issues arise, protecting both the stepper motor and the driver chip itself. The board features an adjustable current limit via an onboard potentiometer, allowing users to fine-tune the motor drive current up to 2.5A to match specific motor requirements. Furthermore, its integrated 5V regulator can supply power to the connected Raspberry Pi, streamlining power management for compact embedded systems.

Key Features

  • Standard Raspberry Pi 40PIN GPIO extension header ensures broad compatibility with Raspberry Pi series boards and Jetson Nano.
  • Onboard dual HR8825 motor controller IC with built-in micro-stepping indexer drives two stepper motors independently.
  • Six available micro-stepping modes (full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step) configurable via DIP switches.
  • Adjustable motor drive current via potentiometer, supporting a maximum 2.5A current output per motor.
  • Comprehensive protection features including Over-current Protection (OCP), Thermal Shutdown (TSD), and VM Undervoltage Lockout (UVLO).
  • Integrates a 5V regulator, enabling the HAT to supply power directly to the Raspberry Pi.

Technical Specifications

Motor ControllerHR8825
CompatibilityRaspberry Pi series boards, Jetson Nano
Motor Drive Voltage8.2V - 28V (external power supply)
Motor Drive Current2.5A (adjustable max)
Logic Voltage3.3V
Micro-stepping ModesFull-step, Half-step, 1/4, 1/8, 1/16, 1/32
Protection FeaturesOCP, TSD, UVLO
Dimensions65 × 56 mm

Frequently Asked Questions

What micro-stepping modes does the HRB8825 HAT support?

The HAT offers six micro-stepping modes, configured via DIP switches. These include full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step, providing flexible control over motor precision and smoothness for various applications and noise reduction.

What is the maximum motor drive current and voltage range?

Each motor can be driven with an adjustable current up to a maximum of 2.5A, controlled by an onboard potentiometer. The motor drive voltage input range for the HRB8825 is 8.2V to 28V, ensuring compatibility with common stepper motor power supplies.

Can this HAT power the Raspberry Pi?

Yes, the Waveshare HRB8825 Stepper Motor HAT integrates a 5V regulator, allowing it to provide stable power directly to the connected Raspberry Pi via its GPIO header. This simplifies wiring by consolidating power input for both the motors and the SBC.

What protection features are integrated into the HR8825 driver?

The HR8825 IC includes robust protection features to safeguard both the motor and the driver chip. These include Over-current Protection (OCP), Thermal Shutdown (TSD) in case of overheating, and VM Undervoltage Lockout (UVLO), enhancing system reliability and longevity.

Package Includes

  • 1 × HRB8825 Stepper Motor HAT (B)
  • 1 × Raspberry Pi screws pack (2pcs)
  • 1 × Aluminum heatsink

Additional Information

Weight 0.046 kg
Dimensions 6.5 × 5.6 cm