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office
Two axis stepper motor driver expansion board based on the
L6470 for STM32 Nucleo
Features
Operating voltage: 8 V - 45 V DC
7 A peak ouotput current (3 A rms) for each
motor driver
Digital voltage supply is selectable (3.3 V or
5.0 V) by a 0 Ω resistor and is provided on
main board
3.3 V digital voltage supply may be provided
by:
the STM32 Nucleo board
the step-down monolithic power
switching regulator soldered on the
expansion board (through jumper
selection, it can also be used to supply
the STM32 Nucleo board
USART communication
enables receiving of commands from a
PC
enables sending information to a PC
Requires no dedicated cable; uses the
Type A to Type Mini-B USB cable
already used to supply the STM32
Nucleo board
SPI interface (may be connected in a daisy
chain configuration)
Equipped with Arduino UNO R3 connectors
Layout compatible with ST morpho
connectors
Five LEDs:
2 green, to indicate that each L6470 is
powered
1 orange, to indicate that the digital
voltage is on
1 yellow, to indicate when any L6470 is
busy
1 red, to indicate when a fault condition
occurs (step loss, OCD, thermal pre-
warning or shutdown, UVLO, incorrect
command, non-performable command)
for any L6470
RoHS compliant
Description
The X-NUCLEO-IHM02A1 is a two axis stepper
motor driver expansion board based on the
L6470. It provides an affordable and easy-to-use
solution for low voltage motor control driving for
stepper motors in your STM32 Nucleo project.
The expansion board includes two L6470s, a
fully-integrated micro stepping motor driver used
to control stepper motors by means of high-end
motion control commands received through SPI.
It is capable of driving one or two stepper motors
when plugged into an STM32 Nucleo board.
This board is equipped with Arduino UNO R3
connectors and the layout is also compatible with
ST morpho connectors. One or more of these
expansion boards can be plugged into an STM32
Nucleo board to control one or more stepper
motors.
Each SPI peripheral of each L6470 is connected
in a daisy chain configuration.
