This is Red A4988 Stepper Motor Driver Controller Board (Suggested Match 3A004). It is made of superior material, safe and stable, great for 3D printer. A4988/DRV8825 can also be used, but pay attention to direction when inserting, otherwise the driver may be burned down.
Features:
-Compact size, easy to install and use.
-All jumpers hit the ON position to indicate 16 subdivisions (4988) or 32 subdivisions (8825).
-Jm connection motor; Jv Connects 5V and 12V-24V Power Supply.
-E /S /D /G of Jc corresponds to Enable /Step /Dir /Gnd driving signal output on the connection respectively.
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