A4988 Stepper Motor Driver

A4988 Stepper Motor Driver – General Specifications

Simple step and direction control interface
Five different step resolutions
Adjustable current control lets you set the maximum current output with a potentiometer
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
A4988 Stepper Motor Driver – Technical Specifications

Minimum operating voltage: 8 V
Maximum operating voltage: 35 V
Continuous current per phase: 1 A
Maximum current per phase: 2 A
Minimum logic voltage: 3 V
Maximum logic voltage: 5.5 V
Microstep resolutions: 1, 1/2, 1/4, 1/8, 1/16
Size: 0.6? × 0.8?
Weight: 1.3 g