The CNC Shield V4 interfaces seamlessly with Arduino Nano, enabling standalone or PC-controlled operation via Arduino GRBL software. It supports precise CNC control through G-codes. With three labeled axes (X, Y, Z), this expansion board offers adjustable microstepping, achieving 1/32 step (DRV8825) or 1/16 step (A4988) capability. Conveniently set the operating mode via jumpers M0, M1, and M2.
The board features limit switch connectors with polarized arrangements for each axis. Essential buttons (Abort, Hold, Resume) and a cooling activation button (CoolEn) enhance your CNC experience. A standard DC Jack (2.5mm x 5.5mm) accommodates 7.5-12V power supplies. Safety and control are ensured with a reboot button and an emergency stop button (E-STOP).
Flexible UART and I2C interfaces, along with adjustable logic supply voltage (3.3-5V), add versatility. The CNC Shield V4 makes motor power supply adjustment effortless, thanks to a jumper on the Mot-VOT-Sel board.
Features:
- 3 axis stepper motor driver
- Compatible with micro-drive engraving machine, three-axis CNC engraving machine or 3D printers
- Can control two-phase four-wire stepper motor up to 2A.
- Enabled digital IO interface, easy to connect with other modules, such as a limit switch / limit stop.
- Enabled I2C interface for connection to the LCD I2C or other I2C modules
- GRBL compatible
- Worked with arduino nano
Specifications:
- Compatible Controllers: Arduino Nano
- Number of Axes: 3 (X, Y, Z)
- Logic Supply Voltage: 3.3 – 5V
- Power Supply Voltage: 7.5 – 12V
- Compatible Drivers: A4988 and DRV8825
- Interfaces: UART, I2C
- Software: Arduino GRBL
- Dimensions: 72 x 59 x 20mm
Board Layout
Jumper Microstep Configuration
| MS1 | MS2 | MS3 | Microstep Resolution |
|---|---|---|---|
| Low | Low | Low | Full step |
| High | Low | Low | 1/2 step |
| Low | High | Low | 1/4 step |
| High | High | Low | 1/8 step |
| High | High | High | 1/16 step |
Applications:
- 3D Printer
- Engraving machines
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