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The is one of the most widely used, cost-effective expansion boards for driving inductive loads with an Arduino. Based on the classic open-source design pioneered by Adafruit Industries , the HW-130 allows you to break past the strict current limits of a microcontroller to drive multiple motors simultaneously. hw 130 motor control shield for arduino datasheet free
2-pin screw terminals used to connect up to four independent DC motors. : The is one of the most widely