CNC Shield for Arduino – Stepper Driver Expansion

The CNC Motor Drive Expansion Shield is designed to interface stepper motor drivers with Arduino boards for CNC and motion control applications. It supports multiple stepper motor channels with dedicated direction and pulse signal control for precise positioning. The shield is built for stable operation and is fully compatible with standard Arduino headers and widely used driver modules such as A4988 and DRV8825. Its compact PCB layout ensures easy integration into embedded systems. Suitable for CNC machines, 3D printers, and automated positioning systems.

Features

Multi-axis stepper motor control support

Independent direction and pulse signal channels

Compatibility with A4988 and DRV8825 drivers

Arduino standard header interface for stacking

Support for CNC control firmware (GRBL compatible)

Compact PCB design for embedded applications

Integrated protection circuitry for safe operation

Easy installation and modular driver integration

Supports up to 4 stepper motor channels

Standard pin mapping for Arduino digital control

Reliable signal routing for precise motion control

Expandable configuration for different CNC setups

Specifications

Model: CNC Motor Drive Expansion Shield

Motor Channels: 3 to 4 axes configurable

Control Interface: Arduino digital pins

Compatible Drivers: A4988, DRV8825, similar modules

Logic Voltage: 5V DC

Motor Supply Voltage: According to driver module

Maximum Current: Depends on driver used

PCB Dimensions: 68 mm x 53 mm

Mounting Type: Arduino shield stackable

Control Signals: Step and direction per channel

Firmware Support: GRBL compatible

Protection Features: Short-circuit and overcurrent protection

Application Type: CNC, 3D printers, motion systems

Links

- CNC Motor Drive Expansion Shield 3D Model

- A4988 Datasheet

- DRV8825 Datasheet

Tutorials

CNC Arduino Shield - How to configure and Drive Steppers