# Stepper motor driver Rosfix A4988 RepRap module – breakout board for bipolar stepper motors

**URL:** https://aio.lv/en/product--rosfix-mod-02964--11823508
**Data updated:** 2026-03-09 11:12 (EET)
**Category:** 3D Printer Consumables
**Manufacturer:** Rosfix
**Manufacturer code:** MOD-02964
**EAN:** 5904422331351
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rosfix-mod-02964--11823508

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Rosfix A4988 RepRap stepper motor driver module is a compact breakout board for driving bipolar stepper motors. Compatible with RepRap and typical microcontroller setups, it provides step and direction inputs, enable/disable, and microstep selection pins. Suited for 3D printers, CNC hobby projects and robotics where precise step control and microstepping are required.

## Long description

Rosfix A4988 RepRap stepper motor driver module is a compact breakout board designed to drive bipolar stepper motors with microstep capability. The module provides standard step and direction inputs, an enable pin, sleep and reset controls, and microstep selection pins to configure full, half, quarter, eighth, and sixteenth step modes. It is compatible with common RepRap electronics and microcontroller platforms and is intended for applications requiring accurate position control and adjustable current limiting.
Advantages
The Rosfix A4988 module offers configurable microstepping for smoother motion and higher positioning resolution without additional logic. Integrated current limiting and thermal protection help prevent motor and driver damage under overload conditions. The compact breakout format simplifies integration into existing RepRap or custom control boards and allows direct connection to stepper motors and controller signals. The board exposes accessible pins for sleep, reset, enable and microstep selection, enabling flexible control strategies.
Suitable for
 3D printers and RepRap systems
 CNC hobby machines and small milling projects
 Robotics and motion control prototypes
 Educational electronics and microcontroller projects
Key specifications
 Driver type: A4988-compatible bipolar stepper driver
 Control inputs: STEP and DIR pins, plus ENABLE, SLEEP and RESET
 Microstepping: selectable full, 1/2, 1/4, 1/8, and 1/16 step modes via MS1–MS3 pins
 Current control: adjustable current limiting via potentiometer
 Protection: built-in thermal shutdown and overcurrent protection
 Form factor: compact breakout board for through-hole or header connections
 Motor compatibility: bipolar stepper motors (two-phase)
How to use
Integrate the Rosfix A4988 module between your control board and a bipolar stepper motor, connecting VMOT and GND to the motor supply and the motor coils to the motor output pins. Connect STEP and DIR to your microcontroller or motion controller outputs and use ENABLE, SLEEP and RESET as needed for power management and fault handling. Adjust the onboard current-limiting potentiometer to set the appropriate motor current and configure the MS1–MS3 pins to select the desired microstepping mode. Observe correct wiring for motor supply decoupling capacitors and maintain adequate cooling during extended operation.
Usage recommendations
Use a suitable motor supply voltage and add a decoupling capacitor close to the VMOT and GND pins. Set the current limit before running the motor and monitor driver temperature; provide additional heat sinking or airflow when driving higher currents or during continuous use. Avoid switching power connections while the motor is connected to prevent damage, and follow safe wiring practices to ensure reliable operation.

## FAQ

### How much does the Rosfix A4988 RepRap stepper motor driver module cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 123 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Rosfix products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Rosfix service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11823508/67225425_large.webp