A4988 StepStick Stepper Motor Diver Module with Heat Sink for 3D Printer

 A4988 driver board widely used in 3D printers and small CNC machines

* Simple step and direction control interface

* Thermal protection, over-current protection, ground fault protection

* 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 toachieve higher step rates.

Features:

Thermal shutdown circuitry

3.3 and 5 V compatible logic supply

Thermal shutdown circuitry

five optional step mode: full, 1/2, 1/4, 1/8 and 1/16

Specifications:

Low RDS (ON) outputs

Automatic current decay mode detection / selection

Mixed with slow current decay modes

Synchronous rectification for low power dissipation

Crossover-current protection

Note:

Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.(More generally, rewiring anything while it is powered is asking for trouble.)

Package Include:

1 x A4988 Stepstick Stepper Motor Driver Module

1 x Heatsink