3D printer Reprap Stepper A4988 driver module with pitch and heatsink

Module Description

Red board Rs 0.2ohm, the maximum current 1A
Size: 1.5mmX2mm
Can drive current: 1A
Manufacturing Process: SMT placement machine manufacturing

A4988 features are the following:

1, suitable for driving 8V ~ 35V 2A following the stepping motor;

2, only a simple step and direction control interface;

3, five different stepping modes: full, half, 1 / 4,1 / 8 and 1/16;

4, adjustable potentiometer can adjust the maximum current output, resulting in higher step rate;

5. Automatic current decay mode detection / selection;

6, thermal shutdown circuit, undervoltage lockout, crossover current protection;

7, ground short-circuit protection and load short-circuit protection

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