Alwaysonline 3D Printer Parts Kit CNC Shield V3 Expansion Board + A4988 Stepper Motor Driver UNO R3

Giới thiệu Alwaysonline 3D Printer Parts Kit CNC Shield V3 Expansion Board + A4988 Stepper Motor Driver UNO R3

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Features:
CNC V3 Board:
Detachable A4988 compatible stepper drive.
The expansion board can be used for the engraving machine and the 3 d printer driver expansion board.
GRBL 0.8 compatible. Open source firmware running for Arduino UNO, converting G code commands to step signals.
PWM spindle and direction pins, 4-axis support (X, Y, Z, A- can copy X, Y, Z or make a complete 4th axis, using custom firmware, using pins D12 and D13).
Compact design. The stepper motor can be connected or soldered into place with a 4-pin molex connector.
Please note that this is an unassembled kit that requires basic welding skills.
A4988 Stepper Motor Driver:
A mixer with a slow current decay mode.
Internal UVLO and low RDS (on) output.
Automatic current decay mode detection/selection.
Synchronous rectification, low power consumption.
Warning: Connecting or disconnecting the stepper motor while the drive is powered may damage the drive.

Specifications:
CNC V3 Board:
Color: Red
Voltage: DC 12~36 V (At this time, only the DRV8825 driver can handle voltages up to 36V, so please consider the operating voltage when powering the board.)
A4988 Stepper Motor Driver:
Color: Red
Thermal shutdown circuit: yes
Cross current protection: yes
Ground fault protection: yes
Load short circuit protection: yes
Compatible logic supplies: 3.3V and 5 V
UNO R3 Board:
Single chip microcomputer: ATmega328
Clock speed: 16 MHz
USB interface: ATmega16U2
Operating voltage: 5 V
I-I / O pin output current: up to 40 mA
3.3 V output current: up to 150 mA
Digital I/O pins: 14 (including 6 PWM-capable pins)
Analog input pin: 6
EEPROM: 1 kB
Static RAM (SRAM): 2 kB
Flash: 32 kB

Package List:
1 * UNO R3 Board
1 * CNC Shield V3 Expansion Board
4 * A4988 Stepper Motor Driver
1 * 40-way Pin
1 * USB Cable

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