Arduino Motor Driver Expansion CNC Shield
This Arduino UNO motor driver expansion shield has a total of four slots to hold up to four A4988 stepper motor drivers. Each stepper motor only needs two I/O pins. Six IO pins can easily control three stepper motors for a 3D printer or three axis CNC applications.
Specifications
Microcontroller: UNO R3
Drivers Accepted: A4988 (SEE ABRA: 2128-POLOLU or MOT-A4988)
Motor Voltage: 8V-30V (A4988)
Logic Voltage: 5V
Motor Current: 2A (A4988)
Motor Connectors: 4 PIN HEADERS
Ports: Digital
Interface: Direction, Enable, Speed
Jumpers: Micro Step Modes M0, M1, M2
Size: 54 x 66 mm
Note: A4988 modules and UNO R3 module not included.
I/O corresponding pins:
8- EN (stepper motor driver enable , active low)
7- Z.DIR (Z -axis direction control)
6- Y.DIR (Y -axis direction control)
5 - X.DIR (X -axis direction control)
4 - Z.STEP (Z -axis stepper control)
3 - Y.STEP (Y -axis stepper control)
2- X.STEP (X -axis stepper control)
WARNING
