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Keyestudio 3D Shield V3 + UNO R3 + 4pcs A4988 Driver /GRBL for Arduino
CNC Shield V3.0 features: 1.Latest CNC Shield Version 3.0 2.GRBL 0.8c compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals) 3.4-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) 4.2 x End stops for each axis (6 in total) 5.Spindle enable and direction 6.Coolant enable 7.Uses removable Pololu A4988 compatible stepper drivers. (A4988£¬ DRV8825 and others) 8.Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping ) 9.Compact design. 10.Stepper Motors can be connected with 4 pin molex connectors or soldered in place. 11.Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.) keyestudio UNO R3 keyestudioUno is a microcontroller board based on the ATmega328P-PU. It has 14 digital input/output pins (of which 6 can be used as PWM outputs)£¬ 6 analog inputs£¬ a 16 MHz quartz crystal£¬ a USB connection£¬ a power jack£¬ an ICSP header and a reset button. A4988 stepper driver This product is a carrier board or breakout board for Allegro's A4988 DMOS Microstepping 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.