kuman CNC Shield Expansion Board V3.0 +UNO R3 Board + A4988 Stepper Motor Driver with Heatsink for Arduino Kits K75 (CNC Shield+UNO R3+Stepper Motor) (K75-CNC-UK), Red Blue

kuman CNC Shield Expansion Board V3.0 +UNO R3 Board + A4988 Stepper Motor Driver with Heatsink for Arduino Kits K75 (CNC Shield+UNO R3+Stepper Motor) (K75-CNC-UK), Red Blue

• Latest CNC Shield Version 3.0 board.
• MCU: ATmega328, USB interface: ATmega16U2.
• PWM Spindle and direction pins. 4-Axis support. Runs on 12-36V DC.
• 2 x End stops for each axis (6 in total).
• 4Pcs A4988 Stepper Motor Driver with radiator.

<b>CNC Shield Board: </b><br /> Latest CNC Shield Version 3.0 <br /> GRBL 0.9<br /> 4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13) <br /> 2 x End stops for each axis (6 in total) <br /> Coolant enable <br /> Compatible with A4988 or DRV8825 stepper driver <br /> Runs on 12-36V DC <br /> <br /> <b>R3 Board: </b><br /> MCU: ATmega328 <br /> USB interface: ATmega16U2 <br /> Operating voltage: 5V <br /> Digital I/O pins: 14 (including 6 with PWM capability) <br /> Analog input pins: 6 <br /> I-I/O pin output current: 40mA max <br /> 3.3V output current: 150mA max <br /> Flash memory: 32 kB (0.5kB used by bootloader - included) <br /> Static RAM (SRAM): 2 kB <br /> EEPROM: 1 kB <br /> Clock speed: 16MHz<br /> <br /> <b>A4988 Stepper Motor Driver: </b><br /> A4988 Stepper Motor Driver Board is a breakout board for Allegro's A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; <br /> <br /> <b>Low RDS (On) Output :</b><br /> Automatic current decay mode detection / selection <br /> Mix with slow current decay modes <br /> Synchronous rectification for low power dissipation <br /> Internal UVLO <br /> Crossover-current protection <br /> 3.3 and 5 V compatible logic supply <br /> Thermal shutdown circuitry <br /> Ground fault protection <br /> Load short-circuit protection <br /> Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16 <br /> 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). <br /> <br /> <b>Package Contents: </b><br /> 1 x CNC Shield Board <br /> 1 x R3 Board <br /> 4 x A4988 Stepper Motor Driver <br /> 4 x Heat Sink<br />