I want to power 2 unipolar stepper motors with my arduino uno. Therefor I wanted to use the Adafruit Motor Shield V2 ( Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit [v2.3] : ID 1438 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits ) that supports motors from 4.5V to 13.5V …

Motorshield using only a few pins

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