This is CNC Shield V3+UNO R3+ 4pcs DRV8825 Stepper Motor Driver With Heatsink for Uno R3 .
CNC SHIELD BOARD : Latest Arduino CNC Shield Version 3.0 Grbl 0.9 Compatible 4-Axis Support (X, Y, Z , A-Can Duplicate X,Y,Z Or Do A Full 4Th Axis With Custom Firmware Using Pins D12 And D13) 2 X End Stops For Each Axis (6 In Total) Coolant Enable Compatible With A4988 Or Drv8825 Stepper Driver Runs On 12-36V DC
STEPPER MOTOR DRIVER DRV8825 WITH HEATSINK : This breakout board for TI’s DRV8825 micro stepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six micro step resolutions (down to 1/32-step). It operates from 8.2 V to 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling). The driver has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications.
Mix with slow current decay modes
Internal UVLO and Low RDS (On) Output
Automatic current decay mode detection/selection
Synchronous rectification for low power dissipation
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.
1 X CNC Shield
1 X Arduino Uno r3 board
4 x DRV8825 Driver
4 x Heatsinks
1 x Arduino Uno USB cable