3 Review(s)

Specifications: size: a4988: 20*15*11mm(lwh) heat sink: 9*9*5mm(lwh) weight: 22 gm. Color: red features: -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 -internal uvlo -mixed with slow current decay modes -synchronous rectification for low power dissipation -crossover-current protection -thermal shutdown circuitry -3. 3 And 5 v compatible logic supply -thermal shutdown circuitry -ground fault circuit -load short-circuit protection -of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16 package included: 4 x a4988 step stick stepper motor diver module 4 x heat sink.