PCB: CNC Controller


Gecko G540 usb controller ! Don’t be held back by a parallel port! DIY Version; PCB Only ! Made in the USA , manufactured by Oshpark known for Quality ! Why order three at a expanded cost when you only need one?

Out of stock


509Maker’s G540 USB Controller !  Allowing the gecko g540 usb controller and G540 unit to be Plug and play! With this pcb and a little soldering at home you can build your own cnc controller. Please see Github Page for all source files, schematics and required parts list.


  • GRBL and Estlcam compatible.
  • Custom Optiboot bootloader
  • FTDI FT232RL USB bridge
  • Atmega328P core processor
  • ICSP header for atmega328p
  • IDC26 header for direct connection to Gecko G540 driver
  • Screw terminals for Start/Resume Feed/Hold Reset/Abort
  • Additional screw terminal for grbl compile time option (Mist Coolant / M7).
  • On board dip switch to select what axis gecko clones on A-axis (X or Y)
  • Power , RX and TX on board LED status indicators
  • On board 5v 1A Recom regulator
  • Board can be powered over USB or external source
  • 7-24V External power source input screw terminals
  • Limit switches , touch probe , spindle and coolant relays make full use of Opto-isolators through the Gecko built in G540 break out board.

Our g540 usb controller runs the latest revision of GRBL cnc control firmware and is compatible with Estlcam and a number of cross platform control software. Such as GRBL Panel, Bcnc, universal G-code Sender just to name a few!


Reference: PDF

509Maker: Github

GRBL: Github

Estlcam: website

Bcnc: website

grbl panel: website

ugs: website

Please note: gecko , grbl , ect. names belong to their respective owners. I am not affiliated and use of the above is in informative reference only! Each item is made right here in the U.S.A. All sales final no returns/refunds. Experienced users recommended. Requires wiring into your own electronics box.


There are no reviews yet.

Be the first to review “PCB: CNC Controller”

Your email address will not be published. Required fields are marked *

You may also like…