A4988 Stepper Motor Driver module



This product is a carrier board or breakout board for Allegro?s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; we therefore recommend careful reading of the?(1MB pdf) before using this product. This stepper motor driver lets you control one?bipolar stepper motorat up to 2?A output current per coil (see the?Power Dissipation Considerations?section below for more information). Here are some of the driver?s key features:

Simple step and direction control interface
Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor?s rated voltage to achieve higher step rates
Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
Short-to-ground and shorted-load protection
This product ships with all surface-mount components?including the A4988 driver IC?installed as shown in the product picture.


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