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
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
Automatic current decay mode detection / selection
Mixed with slow current decay modes
Synchronous rectification for low power dissipation
3.3 and 5 V compatible logic supply
Heat Sink: 9*9*5mm(LWH)
5 * Stepper Motor Diver Module
5 * Heat Sink
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.