Pololu
A4988 Stepper Motor Driver Carrier, Black Edition
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Motors (DC, stepper, servo)
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$32.10
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The Black Edition of the A4988 stepper motor driver carrier features a four-layer PCB for better thermal performance, allowing the A4988 to deliver approxima...
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The Black Edition of the A4988 stepper motor driver carrier features a four-layer PCB for better thermal performance, allowing the A4988 to deliver approximately 20% more current than the standard two-layer (green) version. It is a drop-in replacement for the original carrier in most applications.
Key Features
- Four-Layer PCB – Approximately 20% better thermal performance than the green edition
- Five Microstep Resolutions – Full, half, quarter, eighth, and sixteenth step
- Adjustable Current Limiting – Onboard potentiometer for setting maximum output current
- Built-In Protection – Over-current, over-temperature, and short-circuit protection
- Motor Supply – 8–35 V
- Logic Supply – 3–5.5 V
- Max Current – Up to 2 A per coil (with sufficient cooling)
Also Available
Package Contents
- 1× A4988 Stepper Motor Driver Carrier, Black Edition
- 1× 0.1″ Male Header Pins (not soldered)
Jargon buster
Plain-language definitions for the technical terms used above.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
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