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The X-NUCLEO-IHM01A1 is a stepper motor driver expansion board based on the L6474.

It provides an affordable and easy-to-use solution for driving a stepper motor in your STM32 Nucleo project.

The advanced current control of the L6474 and a complete set of protection features offer high levels of both performance and robustness.

The X-NUCLEO-IHM01A1 is compatible with the Arduino UNO R3 connector, and supports the addition of other boards which can be stacked to drive up to three stepper motors with a single STM32 Nucleo board.

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Errata Sheet
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Data Brief

Key Features

  • Voltage range from 8 V to 45 V
  • Phase current up to 3 Ar.m.s.
  • Power OK and fault LEDs
  • Advanced current control
  • Fully protected power stage
  • Up to 1/16 microstepping resolution
  • Compatible with Arduino UNO R3 connector
  • Compatible with STM32 Nucleo boards
  • Suitable for multi-motor solutions
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2360: Stepper motor driver expansion board based on easySPIN™ L6474 for STM32 Nucleo
2.0 183 KB

User Manual

Description Version Size
UM1794: X-NUCLEO-IHM01A1: Stepper motor driver expansion board based on easySPIN™ L6474 for STM32 Nucleo
1.0 208 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
X-NUCLEO-IHM01A1 gerber files
416 KB

Bill of Materials

Description Version Size
27 KB

Schematic Pack

Description Version Size
X-NUCLEO-IHM01A1 schematics
89 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-IHM01A1 STM32Cube firmware for X-NUCLEO-IHM01A1

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
X-NUCLEO-IHM01A1ActiveL6474PD-14.38Distributor reported inventory date: 2014-09-17
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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