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This A4988 stepper motor driver controller board comes in red and is built for reliable, safe operation on 3D printers and similar motion-control projects. Rather than adjusting settings entirely through software or an onboard potentiometer alone, this board configures its microstepping through a set of onboard jumpers: setting all jumpers to the ON position selects 16 subdivisions of microstepping on this A4988 board, or 32 subdivisions on the related 8825 variant of similar boards.
Its connectors are clearly grouped and labelled: the Jm connector attaches to the motor, the Jv connector takes the 5V logic supply and the 12 to 24V motor power supply, and the Jc connector carries the Enable, Step, Direction and Ground signal lines needed to control the board from a microcontroller or 3D printer mainboard.
Construction combines metal and PCB board material, described as superior quality for safe and stable operation, an important point for a driver board that sits close to a stepper motor's higher current draw. It measures 41mm by 34mm by 11mm and weighs just 10g, a compact size that installs easily into the driver sockets found on common 3D printer and CNC controller boards.
Because it is a compact, socketed style board rather than a bare breakout module, it suits builders replacing a driver on an existing controller board layout, such as a RAMPS-style 3D printer mainboard, where the driver plugs directly into a matching socket.
3D printer builders and CNC hobbyists replacing or upgrading a stepper driver on a socketed controller board will find this jumper-configurable A4988 board a straightforward, drop-in option.
Through onboard jumpers; all jumpers ON selects 16 subdivisions on this board.
Jm connects the motor, Jv takes the power supplies, and Jc carries the Enable, Step, Direction and Ground signals.
A combination of metal and PCB board material.
41 x 34 x 11mm, weighing 10g.
3D printers and similar stepper-motor-driven motion control projects.
| Brand | Generic |
|---|---|
| Driver IC | A4988 |
| Selling unit | PCS |
