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Keyestudio CNC kit / CNC Shield V4.0 + nano 3.0 + 3pcs A4988 Driver
CNC Shield V4.0 features: 1. 3 axis stepper motor driver 2. Compatible with micro-drive laser engraving machine£¬ three-axis CNC engraving machine. 3. 2A can be controlled within the two-phase four-wire stepper motor. 4. Released the digital IO interface£¬ easy to connect to other modules£¬ such as ENDSTOP. 5. Released the I2C interface£¬ you can connect to the LCD I2C or other I2C module. 6. power DC5v interface£¬ 7.5-12V voltage input. 7. GRBL compatible 8. worked with Arduino nano. CH340 Nano board: CH340 Nano 3.0 controller is a small£¬ complete board based on the ATmega328. Its a open source Simple I/O platform with 12 Digital I/O Pins (of which 6 provide PWM output)£¬ 8 Analog Input Pins£¬ pin 0 (RX) and 1 (TX) used to receive (RX) and transmit (TX) TTL serial data£¬ a Mini-B USB connection£¬ an ICSP header and a reset button. A4988 stepper driver: This product is a carrier board or breakout board for Allegro's A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection by Pololu; we therefore recommend careful reading of the A4988 datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil.