Keyestudio CNC shield v4 +3pcs A4988 driver+ Nano CH340 for Arduino CNC

The Keyestudio CNC Shield v4.0 kit is a compact, multi-axis control solution designed for students, educators, and makers building DIY engraving systems. Combining a Nano CH340 controller with a three-axis stepper driver expansion board, this kit provides a streamlined platform for driving precision stepper motors. It is ideal for those looking to build micro-drive laser engravers or miniature three-axis CNC machines.

Compact ATmega328 microcontroller board

The included Nano CH340 is an open-source development platform based on the ATmega328 microcontroller. It features 12 digital I/O pins with 6 providing PWM output, 8 analog inputs, and a Mini-B USB connection for easy programming.

Three-axis stepper motor control

The shield features three dedicated channel slots for A4988 stepper motor driver modules, allowing you to control up to three stepper motors. Each motor channel requires only two I/O ports, meaning just six digital ports are needed to manage all three axes.

Built for CNC and laser engraving

This driver expansion board is fully compatible with GRBL control software. It is specifically designed for building three-axis CNC engraving machines and micro-drive laser engravers.

Two-phase four-wire motor support

The board is capable of controlling two-phase four-wire stepper motors within a 2A current limit. This makes it suitable for driving a wide range of small-scale stepper motors in precision projects.

Expanded interface options

The board breaks out the digital I/O interfaces to easily connect external modules like endstops. It also exposes the I2C interface, allowing you to connect an I2C LCD screen or other compatible sensors and modules.

Flexible power input options

The shield features a DC 5V interface and supports an input voltage range of 7.5V to 12V. This ensures reliable power delivery to both the control logic and the connected stepper motors.