Set of 5 A4988 Stepper Driver for 3D Printer with Heat Sink

Description

Description:
A4988 Stepper Motor Driver Board is a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection.  These drivers were removed from a newly purchased printer, never used.
Features:
•Maximum output current is 1A
•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
Warning:
Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.  Actually, rewiring anything while it is powered is asking for trouble.  Due to the sensitive nature of these drivers to static damage, there is no return once the sealed package is opened.