GRBL CNC/Laser Controller


Looking for a simple controller for your GRBL project that works with the new GRBL version 1.1f?
Are all the other controllers out of stock on other websites?

Look no further!

We got frustrated with the offerings on the market, so we made our own.  Designed to run GRBL 1.1f, this new breakout board has everything you need to get your machine up and running!  It comes with an Arduino UNO Pre-loaded with GRBL 1.1f, so no messing around trying to get firmware installed.  Motor connectors are all standard and we used standard JST PH connectors for easy hook up of your extra signals.

The DRV8825 stepper motor drivers are included.  They provide up to 1.5 amps of power to your steppers to give fast and fluid motion.

What’s in the box:

  • GRBL Shield
  • Arduino UNO R3
  • 8 JST Cables
  • 4 DRV8825 Stepper Motor Drivers
  • USB 2.0 Printer Cable Type A Male to Type B Male


SKU: GRBL_Controller Category:


This breakout board is designed to work with the popular GRBL open source firmware for controlling CNC and laser machines.  We have been very involved in the evolution of GRBL and this shield/breakout board is a simple and effective way to control a machine with GRBL.  It offers easy to connect pinout for all signals and JST connectors for the more well used signals.

The board has these features:

  • 4 Standard stepper board pinout carriers.
  • Ability to select clone axis for multiple motor use.
  • Noise suppression limit switch connections.
  • Screw terminal and JST connectors for easy hookup.
  • Reset select for either GRBL reset or Arduino Reset.
  • Works with GRBL 1.1f and Laser Mode

The board has 4 slots for stepper drivers.  It comes included with DRV8825 stepper drivers using the Texas Instruments DRV8825 motor driver chip.

Stepper Driver Features:

  • 45 V maximum supply voltage
  • Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
  • Adjustable current limit setting with potentiometer
  • Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
  • Short-to-ground and shorted-load protection
Minimum Operating Voltage 8.2V
Maximum Operating Voltage 45V
Continuous Current Per Phase 1.5 amps
Maximum Current Per Phase 2.2 amps
Current Limit Adjustment Analog Trim Pot
Microstep Resolutions Full, 1/2, 1/4, 1/8, 1/16, and 1/32
Connectors: Screw Terminal and JST PH Connectors
Operating Temperature: 0 to 40 °C
Storage Temperature: -40 to 70 °C
Dimensions: 3.25” x 2.25”

Additional information

Weight .5 lbs
Dimensions 4 × 3 × 1 in


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