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.