CNC Kit 1X Shield & 4X A4988 Drivers for Arduino UNO R3 ATmega328P CH340G

Features:

• V3 Engraver 3D Printer CNC Shield Expansion Board A4988 Driver for Arduino
• This expansion board can be used for engraving machines & 3D printers
• 4 stepper motor connection. Each connection can control one A4988 motor
• That means you can connect 4 stepper motors into this board
• Each road stepper motors only need two IO ports
• In other words, six IO ports can be well managed
• Connection Instruction
• When inserting the A4988 module, must be careful not to insert opposite
• Stepper motor wiring as follows:2A, 2B is a group (red, green), 1A, 1B is a group (blue, yellow)
• If you want to change direction, change the position of one group
• Example: 2A and 2B can mutually be exchanged
• A4988 StepStick Stepper Motor Driver Module Heat sink for 3D Printer Reprap
• A4988 surface mount QFN package (ES), the size of 5 mm x 5 mm nominal overall package height of 0.90 mm, and with exposed pad for enhanced thermal dissipation. The package is Pb (suffixes-T), with 100% matte tin leadframe plating.
• Product Summary:
• Low RDS (ON) outputs<,A0~A5/li>
• Automatic current decay mode detection / selection
• Internal UVLO
• Mixed with slow current decay modes
• Synchronous rectification for low power dissipation
• Crossover-current protection
• Thermal shutdown circuitry
• 3.3 and 5 V compatible logic supply
• Thermal shutdown circuitry
• Ground Fault Circuit
• Load short-circuit protection
• Of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16
• Note: PCB Colors May vary

Package Includes:

• 1 x V3 Engraver 3D Printer CNC Shield Expansion Board A4988 Driver for Arduino
• 4 x A4988 StepStick Stepper Motor Driver Module Heat sink for 3D Printer Reprap
• 4 x Mini Heat Sink