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Green rectangular circuit board with 40-pin header, two black DRV8825 driver chips, blue potentiometer, white DIP switch block

LORDWORLD

LORDWORLD Stepper Motor HAT 40PIN DRV8825 2.5A 1/32 development board

SKU CH-5Z7H-66CBJ

A 40-pin HAT with dual DRV8825 drivers runs two stepper motors at up to 2.5 A with microstepping from full to 1/32-step via DIP switches

  • Drives two stepper motors with dual DRV8825 controllers
  • Six microstepping modes from full-step to 1/32-step via DIP switches
  • Adjustable current up to 2.5A per motor using onboard potentiometer
  • Built-in OCP, thermal shutdown and UVLO protect hardware
  • 40-pin GPIO header fits Raspberry Pi series and Jetson Nano

Compatible Host Boards

This HAT mounts on any Raspberry Pi model with a 40PIN GPIO header and also fits the Jetson Nano. It is aimed at makers and engineers who need to drive two stepper motors from a single-board computer without designing a custom driver circuit.

Build Integration

The board draws motor power from an external supply and passes regulated 5 V back to the host through the GPIO header, so the Pi or Jetson can be powered from the same source. Six microstepping resolutions from full-step to 1/32-step are selected by onboard DIP switches, and motor current up to 2.5 A is set with a potentiometer. Connectors accept various stepper pinouts, leaving other GPIO pins free for sensors or displays.

Sustained Operation

Dual DRV8825 controllers include overcurrent protection, thermal shutdown and VM undervoltage lockout to protect both the drivers and the motors during long moves. The integrated regulator maintains a stable 5 V rail for the host even when motor loads fluctuate, reducing the chance of brown-out resets on extended prints or CNC jobs.

Points forts

  • Drives two stepper motors with dual DRV8825 controllers
  • Six microstepping modes from full-step to 1/32-step via DIP switches
  • Adjustable current up to 2.5A per motor using onboard potentiometer
  • Built-in OCP, thermal shutdown and UVLO protect hardware
  • 40-pin GPIO header fits Raspberry Pi series and Jetson Nano

Caractéristiques

BrandLORDWORLD

Questions sur cet article

What is the maximum motor current the dual DRV8825 controllers can deliver before thermal shutdown activates?

The onboard dual DRV8825 controllers provide adjustable motor current up to 2.5A per channel, with thermal shutdown protection that activates if the IC temperature exceeds its internal limit during sustained high-current operation.

How much heat do the dual DRV8825 chips generate when driving two stepper motors at 2.5A continuously?

Each DRV8825 integrates thermal shutdown protection; at 2.5A continuous current the ICs will heat significantly and rely on the PCB copper and airflow to stay below the shutdown threshold, so adding heatsinks or forced air is recommended for all-day operation.

Which Raspberry Pi or Jetson boards does the 40PIN GPIO header support for immediate use?

The standard 40PIN GPIO extension header fits all Raspberry Pi series boards with a 40-pin header and the Jetson Nano, allowing the HAT to stack directly without extra adapters.

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