GRBL 32bits board Presentation

GRBL 32bits board kit is a 4-axis CNC control kit.

Its particularity is that it’s autonomous, it can fully manage the CNC without a computer thanks to its TFT touch screen, but it’s of course possible to connect a computer via USB or WIFI!

Complete solution, powerful, precise, easy to use and to implement thanks to the tutorials, it’s as well adapted for the beginners as for the experienced ones, all for a very low price!

Firmwares are Open Source, GRBL 1.1 for the control board and Firmware developed by Mstrens of the forum for the TFT module.

 GRBL 32bits board kit is compatible with all CNC up to 4 axes with external drivers !!!

GRBL 32bits board details:


  • 32 bits, so in terms of frequencies, it is rather the drivers that will limit us rather than the board!
  • Amplified signals, like STM32 IOs operate in 3.3v, signals are amplified in 5V for compatibility with a multitude of external drivers.
  • Built-in RC filters, on all switch pins.
  • 5V 3A step down Regulator , does not heat up
  • Low purchase price of the STM32 module (less than 2 €)
  • GRBL 1.1, a genuine open source CNC special firmware that opens up a lot of possibilities and options.
  • Change firmware options without need to flash the board, just with simple command lines under serial console.
  • Manages CNCs up to 4 axes
  • Integrated spindle relay
  • Multitude of pins accessories: Probe, coolant mist, coolant flood, soft reset, Security door, spindle PWM (to put a controled spindle or a laser), spindle DIR, Feed Hold, Cycle start

TFT module Details:

  • 3.2″ touch screen
  • SD Slot: Allows you to read G-code files and load additional custom buttons very simply without having to re-flash the firmware
  • USB port: allows to flash ESP32, connect to the console, launch a job via the computer
  • Wifi: Allows to connect to the console, upload a gcode file to the SD and launch the job from the SD via the computer
  • Fully open source and modifiable at will, developed by Mstrens
  • Integrated Nunchuk plug on the front
  • 3 languages to choose from: English, French, German
  • Customizable Colors of all TFT elements
  • For all functions, see  TFT instruction manual


Go to parts list

4 thoughts on “GRBL 32bits board Presentation”

  1. Bonjour,
    je m’intéresse sérieusement à cette machine, j’ai commencé à imprimer les pièces et c’est en bonne voie.
    pour diverses raisons, je préférerais avoir la platine d’accueil du Z usinée en alu,
    Auriez vous un lien pour faire fabriquer cette pièce ?
    En vous remerciant d’avance.

    1. Bonjour Thierry,
      Je n’ai personne à recommander pour ce travail, mais c’est tout de même relativement simple à réaliser dans une plaque d’alu 8mm, avec une perceuse et une disqueuse.

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