Description: 1. Overview: The A4988 Stepper Motor Driver Module with Heat Sink is a high-performance driver specifically designed for controlling 2-phase stepper motors in 3D printing applications. It utilizes the Texas Instruments (TI) A4988 microcontroller IC. 2. Compatibility: This module supports stepper motors with a maximum voltage of 40V and a current up to 2A, making it suitable for most common 3D printer setups. The included heat sink helps dissipate excessive heat generated during operation. 3. Features: Key features include precise microstepping (up to 1/32 step), adjustable acceleration and deceleration, and the ability to drive multiple motors through separate channels. It also comes with an LED indicator for status monitoring. 4. Microcontroller: The A4988 is a dual full-bridge driver that can be programmed via its onboard control pins. It supports various microstepping modes (full-step, half-step, and microstepping) to achieve accurate motor control. 5. Connectivity: Four screw
| Specification | Details |
|---|---|
| Product Name | A4988 Stepper Motor Driver Module |
| Manufacturer | Pololu |
| Driver Type | Dual-HBridge (4-Phase 2-Axis) |
| Input Voltage | 8V to 35V |
| Output Current | Up to 2A per phase |
| Step Angle | 1.8° or 0.9° (selectable) |
| Microstep Resolution | 128 Microsteps |
| Heat Sink Included | Yes for thermal management |
| Dimensions | 50mm x 30mm x 10mm |
| Weight | Approximately 40 grams |
| Operating Temp. | -20°C to 85°C |
| Storage Temp. | -40°C to 150°C |
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