what limit switch will i need to use and what probe do they sell it with the plug already on the wires ?

I believe it's pin a1 and yes the one I bought had the plug. Although the one I bought is an odd size. ( 14.2 mm ) I ended up grinding it down to 14. If I would have known how simple they are I would have just made one. All you need is an alligator clip to ground out on a slightly spring loaded piece of metal with wires connecting the two.

Is this board compatible with Lightburn software?

Yes, the LightBurn version for GCode controllers will run on this board. I got the WOODPECKER CNC CAMXTOOL V3.4 and I’m running the current trial version (LightBurn V0.9.16) now and have found no problems. Note: the trial contains both g-code and DSP versions.

How are the limit pins configured? Will the board recognize the pins or will the board just notify the software and its up to the software to stop?

The function of the limit pins is to notify the kernel on the board that they have been activated or deactivated depending on the type of limit switch you are using. IE a Normally Opened or Normally Closed switch. I do know the GRBL 1.1f kernel that comes with the board detects the change on the pins. However, you still need to set the software to do what you want it to do when detecting the change. IE like having the homing setting set in the GRBL settings $24 - $27 are the settings you want to set for homing.

do you need other board like arduino to make this work? Does it comes with software?

Yes it comes with software and you don’t need anything else

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⚡ Elevate your CNC control—precision, power, and protection in one sleek board!

COOL UNDER PRESSURE - Built-in aluminum heat sink and fan port keep your controller running smooth, even under heavy loads.
SAFETY FIRST DESIGN - Emergency stop button port and optocoupler isolation protect your machine and workflow from unexpected faults.
PLUG PLAY USB POWER - Upgraded USB-CH340 port ensures stable, durable connection—no more dropped signals during critical jobs.
FUTURE READY FLEXIBILITY - Supports offline modules and powerful 24V spindles up to 20,000 RPM—upgrade your CNC game effortlessly.
PRECISION 3 AXIS MASTERY - Seamlessly control XYZ stepper motors & spindle with GRBL 1.1f firmware for flawless milling.

The CNCTOPBAOS 3 Axis GRBL 1.1f USB CNC Controller Board is a cutting-edge control card designed for 3018 and 1610 PRO series CNC routers. Featuring an upgraded GRBL 1.1f firmware, plug-in USB interface, integrated stepper motor drivers with heat dissipation, and enhanced spindle control supporting up to 20,000 RPM, it delivers reliable, precise multi-axis control. Safety features like emergency stop ports and optocoupler isolation ensure stable operation, while offline module compatibility future-proofs your CNC setup.

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Display Type	LED
Operating Temperature	2E+1 Degrees Celsius
UPC	785004502766
Manufacturer	Changzhou Rattm Motor Co.,Ltd
Color	Transparent
Shipping Weight	0.18 Kilograms
Item Model Number	4V
Item Part Number	4V
Primary material	Plasti
Capacity	3 Axis
Country of Origin	USA

CNCTOPBAOS 3 Axis GRBL 1.1f USB Port CNC Engraving Machine Controller Board for CNC Router Engraver Milling Machine 3018-PRO 1610-PRO 3018-PRO-MAX Control Card

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