Feature

●★ Stable performance ★ A4988 Driver Chip is low power consumption and will not be too hot during use. The performance is more stable than chip.
●★ DC Power cable ★ The DC power cord can quickly connect to the DC power adapter and power the CNC shield board. Save time and more securer cable connection Plug and Work.
●★ CNC Shield ★ This is the latest version of the expansion board, which can be used for engraving machines and 3D printers. It can drive 4 A4988 stepper motors.
●★ With 20 Pcs Jumpers ★ When setting up CNC projects, jumper caps are necessary accessories. There are 20 of them in the kit, enough for most project.
●★ Reliable technical support ★ Please visit github (github: Keeyees/KY-102) to get relevant information or can contact us on Amazon, we will send PDF Document to you.


Description

CNC Expansion Board:
- GRBL 0.9 compatible
- Runs on 12-36V DC
- 4-Axis support: X, Y, Z
- It can drive 4 stepper motors, and each stepper motor only needs 2 IO ports.
That is to say, 6 IO ports can manage 3 stepper motors very well, which is very convenient to use.

A4988 Stepper Motor Driver:
- Size: 20*15*11mm
- Heat Sink Size: 9*9*5mm
- Minimum operating voltage: 8V
- Maximum operating voltage: 35V
- Continuous current per phase: 1Av - Maximum current per phase: 2A
- Minimum logic voltage: 3V
- Maximum logic voltage: 5.5V
- Thermal shutdown circuitry
- Ground fault protection
- Load short-circuit protection
- Microstep resolutions: Full, 1/2, 1/4, 1/8 and 1/16

KeeYees Board:
- microcontroller
- Input voltage: 7-12V
- 5V Electric current: 500MA
- 3.3V Electric current: 50MA
- 14 Digital I/O Pins (6 PWM outputs)
- 8 Analog Inputs
- 32k Flash Memory

Package included:
1 x CNC Shield Board
1 x KeeYees Board
4 x A4988 Stepper Motor Driver with Heat Sink
1 x Female DC Power Cable
4 x Mechanical Switch Endstop
20 x 2.54mm Black Jumper Caps