Feature

●MAIN FUNCTION: The extension board can be used for engraving machine or 3D printer driver
●PWM SPINDLE AND DIRECTION PIN: PWM spindle and direction pin, 4 shaft support (X, Y, Z, A - you can copy X, Y, Z or use pin D12 and D13 customize firmware perform complete shaft 4)
●A4988 Stepper Motor Driver Board is a breakout board for Allegros A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection;
●Package Contents: 1 x CNC Shield Board 4 x A4988 Stepper Motor Driver
●5.CNC Shield Expansion Board V3.0 + A4988 Stepper Motor Driver with Heatsink for Arduino Kits K75

Description

CNC Shield Expansion Board V3.0 + A4988 Stepper Motor Driver With Heatsink for Arduino Kits K75

Operating voltage: 5V

Digital I/O pins: 14 (including 6 with PWM capability)

I-I/O pin output current: 40mA max

3.3V output current: 150mA max

Flash memory: 32 kB (0.5kB ud by bootloader - included)

Static RAM (SRAM): 2 kB

EEPROM: 1 kB

Clock speed: 16MHz

A4988 Stepper Motor Driver Board is a breakout board for Allegros A4988 DMOS Micro-stepping Driver with Translator and Overcurrent Protection;

Low RDS (On) Output

Automatic current decay mode detection / lection

Mix with slow current decay modes

Synchronous rectification for low power dissipation

Internal UVLO

Crossover-current protection

3.3 and 5 V compatible logic supply

Thermal shutdown circuitry

Ground fault protection

Load short-circuit protection

Five lectable step modes: full, 1/2, 1/4, 1/8 and 1/16

Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble).Color: blue + red

Material: metal + PC

Package Contents:

1 x CNC Shield Board

4 x A4988 Stepper Motor Driver

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