Stepper motor and controller LEGO  DUPLO connectors
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Stepper motor and controller LEGO + DUPLO connectors

Set of LEGO and DUPLO compatible connectors for a stepper motor 28BYJ48 and its ULN2003 controller models ...

similar models —

Stepper motor and controller LEGO + DUPLO connectors alternatives
Stepper Motor Winch
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